According to Au7o's analysis of 7,080+ owner reports, the 1998-2025 Subaru Forester has 33 documented known issues, with 15 rated critical. The most serious are FB25 Engine Excessive Oil Consumption ($0-$4,500 repair), CVT Transmission Shudder and Premature Failure ($0-$8,000 repair), EJ25 Head Gasket Failure (External Leak) ($1,800-$3,500 repair), Rear Coil Spring Corrosion Fracture (Recall WUT-05) — Spring Snaps in Salt-Belt States ($0-$700 repair), EyeSight False / Phantom Automatic Emergency Braking, Starlink DCM Parasitic Battery Drain After 3G Network Shutdown, Front Driveshaft Outer Race Crack and Breakage (Recall WRP-23), PCV Valve Separation Causing Loss of Power and Engine Damage (Recall WUW-08), Secondary Air Injection Pump Relay Failure — Overheat / Fire Risk (Turbo XT, Recall WTM-73 / NHTSA 16V-738). Across all issues, repair costs range from $60 to $8,000. at .
Subaru of America, Inc. (Subaru) is recalling certain 2024 Forester vehicles. The engine water pipe may have loose attachment bolts, allowing the pipe to lose its seal and leak coolant.
Campaign #23V72300026/10/2023
POWER TRAIN:DRIVELINE:DRIVESHAFT
Subaru of America, Inc. (Subaru) is recalling certain 2024 Crosstrek, Impreza, 2023-2024 Forester, and 2023 WRX vehicles. The front driveshaft assemblies' outer race may develop cracks and break.
Campaign #23V75400009/11/2023
WHEELS
Subaru of America, Inc. (Subaru) is recalling certain 2025 Forester vehicles equipped with 18" aluminum alloy wheels. The wheels may have been manufactured with an incorrectly specified lug seat surface, which can result in the wheel being improperly attached and cause a loss of vehicle stability.
Campaign #25V03300023/01/2025
CHILD SEAT
Subaru of America, Inc. (Subaru) is recalling certain 2025 Forester vehicles. The child seat anchor bolts may have been improperly tightened, allowing the bolts to come loose.
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What are the most common Subaru Forester problems?
According to Au7o's analysis of 7,080+ owner reports, the 1998-2025 Subaru Forester has 33 documented issues. The most frequently reported are: FB25 Engine Excessive Oil Consumption, CVT Transmission Shudder and Premature Failure, EJ25 Head Gasket Failure (External Leak). Of these, 15 are rated critical and should be addressed promptly.
Is the Subaru Forester reliable?
The 1998-2025 Subaru Forester has 33 known issues documented across 7,080+ owner reports. 15 issues are rated critical: FB25 Engine Excessive Oil Consumption and CVT Transmission Shudder and Premature Failure and EJ25 Head Gasket Failure (External Leak) and Rear Coil Spring Corrosion Fracture (Recall WUT-05) — Spring Snaps in Salt-Belt States and EyeSight False / Phantom Automatic Emergency Braking and Starlink DCM Parasitic Battery Drain After 3G Network Shutdown and Front Driveshaft Outer Race Crack and Breakage (Recall WRP-23) and PCV Valve Separation Causing Loss of Power and Engine Damage (Recall WUW-08) and Secondary Air Injection Pump Relay Failure — Overheat / Fire Risk (Turbo XT, Recall WTM-73 / NHTSA 16V-738) and Brake Light Switch Silicone Contamination — No-Start / Stuck in Park (Recall WUE-90 / NHTSA 19V-149) and Front Passenger Occupant Detection System (ODS) Sensor Mat Harness Failure — Airbag Warning Light and Deactivated Passenger Airbag and Takata Front Passenger Airbag Inflator Rupture Risk (PSAN) — Safety Recall and EJ255 Turbo Piston Ringland Cracking and Engine Failure (Forester XT) and Turbo Failure From Clogged Oil-Supply Banjo Bolt Filter (Forester XT, EJ255) and Denso Low-Pressure In-Tank Fuel Pump Failure Causing Sudden Stalling. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Subaru Forester problems?
Repair costs for known Subaru Forester issues range from $0 to $8,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, FB25 Engine Excessive Oil Consumption, typically costs $0-$4,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What year Subaru Forester is the most reliable?
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
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Community reported
3,200 owners
On the 2011-2018 Subaru Forester FB25, the 2.5L FB25 engine in 2011-2018 Foresters is widely reported for excessive oil consumption, often burning 1 quart every 1,000-1,500 miles. The root cause is defective piston rings that fail to maintain proper oil control. Subaru acknowledged the issue with TSB 02-157-14R and extended the powertrain warranty to 8 years/100,000 miles for affected vehicles. A class-action settlement (Oakes v. Subaru) covered ring replacement for qualifying owners. The oil consumption test (OCT) required by Subaru involves monitoring oil usage over 3,000 miles at the dealership.
Common Symptoms
Oil level drops significantly between changes
Low oil pressure warning light
Blue or grey smoke from exhaust on startup
Need to add 1+ quart of oil every 1,000-1,500 miles
Burning oil smell from engine bay
How to Fix
Request an oil consumption test (OCT) at a Subaru dealer. If consumption exceeds 1 qt per 3,000 miles, piston ring replacement is warranted. The fix involves replacing all piston rings and sometimes pistons (Subaru part 12006-AB270 short block assembly for severe cases). Check warranty extension and class-action settlement eligibility. Use Subaru 0W-20 synthetic oil and change at 3,000-mile intervals while monitoring.
High Confidence3,200 reportsLast reported by owners Feb 2026Reviewed Feb 2026
On the 1998-2010 Subaru Forester EJ25, the EJ25 2.5L horizontally-opposed engine in 1998-2010 Foresters is notorious for external head gasket failure. Unlike typical blown head gaskets that cause overheating, the Subaru EJ25 gaskets fail externally, leaking coolant and oil down the sides of the engine. The failure is caused by the gasket material (composite) breaking down over time, combined with the horizontal orientation placing uneven stress on the gaskets. This is widely considered the most common and well-documented Subaru defect.
Common Symptoms
Sweet coolant smell from engine bay
Oil weeping down sides of engine block
Coolant level dropping with no visible external puddle
White residue or staining on lower engine block
Overheating in severe cases where internal gasket failure occurs
How to Fix
Replace both head gaskets with the updated MLS (multi-layer steel) gaskets. Resurface both cylinder heads to ensure flatness within spec (0.002" max). Replace thermostat, water pump, timing belt, and all idler/tensioner pulleys while the engine is apart — these are all accessible during the job. Use genuine Subaru coolant (SOA868V9210). Budget 10-14 hours labor for a boxer engine head gasket job.
High Confidence0 reportsLast reported by owners Invalid DateReviewed Invalid Date
On the 2019 Subaru Forester, on 2019 Foresters with the FB25 boxer engine, the aluminum PCV valve can separate during heating/cooling cycles, allowing valve fragments to enter the engine and cause a sudden loss of power while driving. Subaru recalled roughly 51,613 2019 Crosstrek/Forester/Ascent vehicles under NHTSA 19V-856 / Subaru WUW-08, with 33,383 of those being Foresters.
Common Symptoms
Sudden loss of engine power while driving
Rough running or misfire
Rattling or debris noise from the engine
Check engine light
Engine stalling
How to Fix
Covered under safety recall WUW-08 / NHTSA 19V-856 (recall began Jan 31, 2020). Dealers inspect and replace the PCV valve free of charge; if the valve has separated and the fragments cannot be located, Subaru replaces the short block engine at no cost. Verify your VIN at nhtsa.gov/recalls or call 1-844-373-6614.
High ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2004-2013 Subaru Forester EJ255 2.5L Turbo, the turbocharged EJ255 has thin, cast-piston ringlands that crack under detonation. The large bore, high cylinder temperatures and a flat oil pan that lets oil slosh away from the pickup under cornering make the engine vulnerable: a single knock event (low-octane fuel, poor tune, hard driving, or oil starvation) can fracture the second ringland. Once cracked, combustion gases blow into the crankcase and oil consumption spikes to roughly a quart every 300-500 miles, with misfires and eventual catastrophic engine failure.
Common Symptoms
Heavy oil consumption (quart per 300-500 miles)
Cylinder misfire and rough running
Blue exhaust smoke
Loss of power / failed leakdown on one cylinder
Engine knock under load
How to Fix
Run only the required premium fuel, change oil on short synthetic intervals, address any knock/detonation immediately, and avoid extended high-boost driving on a stock bottom end. A cracked ringland is confirmed by a leakdown/compression test on the affected cylinder; the repair is a rebuild or replacement of the short block with upgraded forged pistons. Adding an oil-pickup baffle/extended sump helps prevent recurrence.
Medium ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2009-2013 Subaru Forester EJ255 2.5L Turbo, the turbocharger oil-feed line on the EJ255 uses a banjo (union) bolt containing a fine mesh screen meant to keep debris out of the turbo. As the engine ages or oil-change intervals stretch, sludge and carbon clog the screen and starve the turbo of oil. The turbo bearing then overheats and fails — the shaft can break and the compressor wheel disintegrate, sending metal debris into the oil pan, oil cooler and engine bearings, often destroying the engine. Subaru later deleted the screen on the union bolt because of these clogging-induced failures.
Common Symptoms
Loud whine, whistle or grinding from the turbo
Blue smoke from the exhaust
Sudden loss of boost/power
Knocking or low oil pressure
Metallic debris found in the oil pan or screen
How to Fix
On EJ255 turbo Foresters, proactively remove and clean (or delete, per later Subaru practice) the banjo-bolt oil-supply screen at the turbo oil-feed line and keep to short synthetic-oil intervals. At the first sign of turbo whine, blue smoke, or low oil pressure, inspect the screen and oil-feed line before further driving. A failed turbo requires turbo replacement plus a thorough oil-system flush; if debris reached the bearings, engine teardown may be needed.
Medium ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2009-2022 Subaru Forester, coil-on-plug ignition coils on the Forester are a common failure point. As the coil's internal epoxy/resin cracks with heat and age, the coil produces erratic or insufficient spark, causing single-cylinder misfires, rough idle, hesitation on acceleration, reduced fuel economy and a flashing/steady check-engine light. A frequently reported pattern is hard starting or stumbling when cold (below roughly 10°F) that improves once the engine warms. Note that a leaking spark plug tube seal (oil in the plug well) can prematurely kill a coil, so the two issues often appear together.
Common Symptoms
Rough idle and vibration at idle
Engine hesitation or stumble on acceleration
Flashing or steady check engine light
Hard starting or misfire when cold
Reduced fuel economy
How to Fix
Pull codes — P0301-P0304 indicate the misfiring cylinder; P0351-P0354 indicate coil circuit faults. Confirm by swapping the suspect coil to an adjacent cylinder; if the misfire follows the coil, replace it (coils cannot be repaired). Inspect the plug well for oil and replace the spark plug tube seal if oil is present so the new coil isn't ruined. Replace the spark plugs at the same time. Forester ignition coil part numbers vary by year/engine (for example 22433AA691 on 2013-2018 2.5L and 22433AA590 on non-turbo 2009-2010); confirm the exact PN by VIN.
Medium ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2011-2024 Subaru Forester FB25, the boxer engine's two valve covers face outward and sit low on each side, exposing the cork/rubber valve cover gaskets and the spark plug tube seals to heat cycling and the path of any leaking oil. As these seals harden and shrink, oil seeps out and visibly drips onto the exhaust (burning-oil smell from under the hood) and — more importantly — pools down inside the spark plug tubes. Oil in the plug tubes saturates the plugs, boots and ignition coils, leading to engine misfires, rough idle and a check-engine light. Owners report this on both early FB25s and surprisingly low-mileage newer cars (cases as early as ~17k-50k miles documented on the owners' forum). The valve cover's external location makes the leak a frequent dealer/independent repair.
Common Symptoms
Burning oil smell from engine bay
Oil dripping/residue along the lower side of the engine
Rough idle and engine misfire
Check engine light with cylinder misfire codes
Oil pooled in spark plug wells when coils are removed
How to Fix
Remove the affected valve cover and replace BOTH the valve cover gasket AND the spark plug tube seals at the same time (replacing only the cover gasket and leaving old tube seals lets oil keep reaching the plugs). Inspect and replace any oil-soaked spark plugs and ignition coils. The FB25 valve cover gasket is OEM 13294AA050 (supersedes/cross to 13294AA053); the gasket set that includes the spark plug tube/washer seal is 13293AA051. Clean oil residue off the block and re-torque the cover to spec.
Medium ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2011-2018 Subaru Forester FB25 2.5L, the FB25's hydraulic timing-chain tensioners can bleed down overnight, so on a cold start the chain is momentarily slack and slaps the chain cover/guides, producing a metallic rattle for the first few seconds until oil pressure builds. A brief rattle is common; a rattle that persists 3-4 seconds or grows over time indicates worn tensioners and guides and risks chain skip if ignored. Owners report dealers replacing both tensioners, both chains and all guides on higher-mileage cars.
Common Symptoms
Metallic rattle/clatter for a few seconds at cold start
Rattle that lengthens or worsens over time
Rattle returns after the car sits overnight
Occasional rough running if chain has stretched
Noise reduced after an oil change
How to Fix
Use the correct-grade oil (0W-20) and keep oil fresh; many owners find a brief startup rattle is normal. If the rattle lasts more than ~3 seconds or worsens, have the timing chain tensioners, chains and guides inspected and replaced as a set before a guide breaks or the chain jumps time. Confirm oil pressure and check for sludge that can starve the tensioners.
Medium ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2019-2020 Subaru Forester, the Data Communications Module (DCM) that powers Starlink keeps trying to reach the defunct cellular 3G network and fails to sleep, drawing excess current with the car off and killing the battery, causing repeated dead-battery no-starts even after a new battery is installed. A class action covering 2015-2020 Foresters (among other models) settled over this premature battery drain.
Common Symptoms
Repeated dead battery / no-start even after replacing the battery
Battery drains within a few days of sitting
Elevated parasitic draw measured with the car off
Starlink connectivity errors
Battery warning on dash
How to Fix
Covered by the Subaru battery-drain class settlement (2015-2020 Forester): extended battery warranty plus cash reimbursement of 55%-165% of prior out-of-pocket battery/repair costs depending on number of repairs, age, and mileage (claim deadline has passed). Dealers can reflash or service the DCM/charging logic; pulling the DCM fuse is a temporary fix that disables Starlink features.
High ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2009-2013 Subaru Forester 2.5L EJ255 Turbo, on turbocharged Forester XT models, the relay controlling the secondary air injection (SAI) pump can fail in the closed position, leaving the air pump running continuously. Sustained operation overheats the pump, which can melt surrounding components and create a fire risk even with the vehicle parked. Subaru recalled about 100,000 turbo vehicles (Forester XT, Impreza WRX/STI, Legacy/Outback turbo) for the defect.
Common Symptoms
Burning / melting smell from engine bay
Air pump audibly running after engine warmed up or off
Check engine light with SAI codes
Blown SAI-circuit fuse
How to Fix
Free recall repair under Subaru campaign WTM-73 (NHTSA 16V-738): the dealer replaces the secondary air injection pump relay. If the pump itself was already damaged by prolonged overheating it is replaced as well. Owners of turbo XT models should confirm the recall has been completed by VIN, as completion rates on older vehicles are often incomplete.
High ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2014-2016 Subaru Forester, silicone gas outgassed from in-cabin consumer products (cleaners, air fresheners, protectants) can seep into the brake lamp switch housing, where it forms an insulating silicon-dioxide deposit on the contact terminals. Because the brake switch on these Foresters feeds the transmission shift-interlock and the push-button ignition interlock in addition to the brake lights, a failed switch can leave the brake lights dark, prevent shifting out of Park, and on keyless models prevent the engine from starting. Subaru recalled roughly 1.3 million U.S. vehicles for this defect.
Common Symptoms
Brake lights do not illuminate when pedal is pressed
Push-button start cranks nothing / engine will not start
Shift lever stuck in Park, won't release
Intermittent cruise control or hill-hold dropout
No diagnostic trouble code stored
How to Fix
Free recall repair under Subaru campaign WUE-90 (NHTSA 19V-149): the dealer replaces the brake lamp switch with a revised unit using fluorine grease that resists silicone contamination. Out of warranty/recall, the switch itself is an inexpensive part (~$30-50) but diagnosis of a no-start or no-shift complaint is often misattributed to the battery, starter, or ignition before the switch is found.
High ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2019-2023 Subaru Forester, the Harman-built Starlink head unit on 5th-gen Foresters freezes on startup, reboots in a loop every few seconds, or goes to a black/blank screen, often after a software update. Subaru issued TSB 15-228-18R covering 2019-2020 Forester (among other models) for display freeze-up or black-screen concerns; owners also report the backup camera failing to display in reverse when the unit is locked up.
Common Symptoms
Touchscreen frozen on startup, buttons unresponsive
Infotainment reboots in a loop every few seconds
Black or blank screen
Backup camera does not display in reverse
CarPlay / Android Auto connection drops
How to Fix
A hard reset clears most lockups: press and hold the audio power knob about 10 seconds (2019-2023 models). Disconnecting the battery for 10-15 minutes forces a full reboot. Persistent cases need the latest firmware patch or head-unit replacement at a dealer per TSB 15-228-18R.
Medium ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2019-2021 Subaru Forester, forester owners report the EyeSight pre-collision braking system applying hard braking with no obstacle present, including on open highways and curves, plus erratic lane-keep-assist interventions, all attributed to the windshield-mounted stereo-camera assembly. A class action over the EyeSight system received final court approval in November 2025 covering certain 2014-2021 Foresters.
Common Symptoms
Automatic emergency braking activates with no obstacle present
Sudden hard braking on highways or curves
System falsely senses hillsides or overpasses as hazards
Erratic lane-keep steering corrections
EyeSight unavailable / shuts off warning
How to Fix
The EyeSight class settlement (2014-2021 Forester) extends the warranty to reimburse 75% of qualifying repair costs to the EyeSight camera assembly / rear sonar for up to 4 years or 48,000 miles from in-service date. Dealers can recalibrate or replace the cameras and apply software updates; document each event and file an NHTSA complaint at nhtsa.gov.
High ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2015-2018 Subaru Forester, the Occupant Detection System sensor mat wiring harness in the front passenger seat cushion develops an unstable electrical connection (decreased contact pressure between terminals). This causes the SRS airbag warning light to illuminate and the passenger frontal airbag to deactivate even when the seat is occupied — a genuine safety defect because the airbag may not deploy in a crash. Subaru issued NHTSA safety recall 19V701 (Subaru campaign WUM-98) covering roughly 366,000 Foresters built January 20, 2015 through August 1, 2017, to inspect/replace the ODS sensor mat harness. Owners widely report the fault recurring after the recall repair, and dealers frequently attribute recurrences to seat 'water damage' and deny goodwill, leaving owners to pay out of pocket.
Common Symptoms
SRS/airbag warning light illuminated
Passenger airbag OFF indicator stays lit with an adult passenger seated
Airbag ON/OFF indicators cycle or behave erratically
Intermittent fault that comes and goes with bumps or seat load
How to Fix
Under safety recall 19V701, dealers inspect and replace the ODS sensor mat harness free of charge — verify eligibility by VIN first. Out of recall, the fix is replacing the occupant detection sensor mat / harness in the seat bottom (Subaru part e.g. 64084SJ100); recurrent or severe cases require replacing the seat cushion assembly.
High ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jul 2026
On the 2009-2013 Subaru Forester, certain 2009-2013 Foresters are equipped with a Takata-sourced front passenger frontal airbag inflator using non-desiccated phase-stabilized ammonium nitrate (PSAN). Over years of exposure to heat and humidity, moisture intrusion can degrade the propellant so the inflator over-pressurizes and ruptures its metal housing during deployment, spraying shrapnel into the cabin. This is the industry-wide Takata defect that has caused deaths and injuries. Subaru's Forester remedy has been tracked under recall campaigns TKA/TKB/TKC (NHTSA 19V-009 and related), with an interim 'like-for-like' replacement followed by a final non-Takata/desiccated inflator. Only the passenger-side front inflator is affected; the driver front airbag on these Foresters did not use a Takata inflator.
Common Symptoms
No driveability symptom — latent safety defect
Recall notice received by mail / open recall shown on VIN lookup
Risk of inflator rupture and metal shrapnel if passenger airbag deploys in a crash
How to Fix
Free recall repair: the dealer replaces the front passenger airbag module/inflator with a non-Takata (or desiccated) inflator, roughly a 2-hour job. Owners should check their VIN at NHTSA.gov/recalls or Subaru and complete the remedy, including any subsequent final-remedy recall if an interim inflator was installed.
High ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jul 2026
On the 2014-2018 Subaru Forester, on Foresters operated in road-salt regions, stone and debris impact chips the protective coating on the rear coil springs. Bare spring steel then pits and corrodes, and a section of the lower coil can fracture and break away. A broken spring end can contact and puncture the rear tire and degrades handling and ride height. Subaru issued recall/campaign WUT-05 covering roughly 499,000 vehicles to replace the rear springs with corrosion-resistant units.
Common Symptoms
One rear corner sitting noticeably lower
Pieces of spring metal found on the ground near the car
Clunk or harsh impact over bumps
Tire damage from a broken spring end
Sagging ride height at the rear
How to Fix
Check the VIN for open recall WUT-05 and have the rear coil springs replaced free with the redesigned, better-coated springs. Inspect for telltale signs: a corner sitting low, metal fragments on the ground where parked, or a clunk/sag over bumps. Out of warranty, replace springs in axle pairs and treat/undercoat the new springs in salt climates.
Medium ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2009-2018 Subaru Forester, foresters from 2009-2018 develop a persistent clunking or knocking noise from the rear suspension when going over bumps, rough roads, or speed bumps. The cause is worn rear lateral link bushings and rear stabilizer bar end links. The rubber bushings dry out and crack, allowing metal-on-metal contact. The noise is often misdiagnosed as strut or shock failure.
Common Symptoms
Clunking from rear over bumps and rough roads
Hollow knocking sound at low speeds over uneven surfaces
Rear end feels loose or vague in corners
Visible cracking or deterioration of rear suspension bushings
How to Fix
Replace rear lateral link bushings (both inner and outer on each side). Replace rear stabilizer bar end links. Whiteline polyurethane bushings are a popular upgrade that lasts significantly longer than OEM rubber. If noise persists, check rear subframe mounting bushings. Torque all bolts to spec with the suspension loaded (wheels on ground or suspension compressed to ride height).
Medium Confidence0 reportsLast reported by owners Invalid DateReviewed Invalid Date
On the 2014-2022 Subaru Forester, foresters routinely wear the inner edges of the rear tires bald at low mileage (often 20,000-30,000 miles). The rear suspension allows toe adjustment but not camber, and the factory frequently leaves the rear toe set too aggressively, scrubbing the inner shoulders. Because owners can't see the inner edge, the wear is often discovered only when tires are flipped or replaced, leading to premature, uneven tire replacement.
Common Symptoms
Rear tires worn bald on the inner edge
Uneven rear tire wear at low mileage
Tire noise/feathering on the inside shoulder
Shortened tire life despite rotations
Cupping on rear inner tread
How to Fix
Get a four-wheel alignment with the rear toe set to the low end of spec (near zero) rather than the factory default, ideally early in ownership. Inspect inner rear tire edges at every rotation. Where toe is out of range and not adjustable enough, aftermarket rear toe/camber adjustment hardware can bring it into spec. Maintain correct tire pressures, since under-inflation accelerates the wear.
Medium ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2023-2024 Subaru Forester, certain 2023-2024 Foresters left the factory with a front drive shaft assembly whose outer race was improperly cooled during manufacturing and can crack, then break over time, causing loss of motive power or a rollaway if parked without the parking brake. Recall WRP-23 (NHTSA 23V-754) covers about 328 Foresters, plus the 2024 Crosstrek/Impreza and 2023 WRX (3,732 vehicles total).
Common Symptoms
Clicking or knocking from the front axle
Loss of drive power while accelerating
Vibration through the floor or steering
Vehicle rollaway in park without parking brake
Grinding from front driveshaft
How to Fix
Covered under safety recall WRP-23 / NHTSA 23V-754. Dealers inspect and replace the left and/or right front driveshafts as necessary, free of charge (owner letters mailed January 8, 2024). Verify your VIN at nhtsa.gov/recalls or call 1-844-373-6614.
High ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2009-2018 Subaru Forester, forester wheel bearings (both front and rear hub assemblies) fail prematurely, often well before 100,000 miles. The most consistent symptom is a low-pitched grinding, humming or 'airplane' droning noise from the affected corner that grows louder with speed; rear bearing wear is often felt as a vibration under the seats. The noise typically changes pitch or volume during a left/right lane-change maneuver (which distinguishes it from differential whine). Subaru acknowledged a contributing root cause: unevenness/distortion of the bearing backing plate surface affects hub/bearing concentricity after the axle nut is torqued, allowing a 'howling' bearing to develop over time. Water/dirt contamination from failed seals and improper axle-nut torque accelerate the wear. Subaru issued a service bulletin acknowledging the rear bearing/backing-plate concern.
Common Symptoms
Grinding or humming/droning noise from a wheel that gets louder with speed
Noise changes during left/right lane-change maneuvers
Vibration felt under the seats (rear bearing)
Knocking or clunking when cornering
Uneven/inner-edge tire wear
Play when rocking the wheel by hand
How to Fix
Diagnose by lifting the wheel and checking for play/roughness, and by listening for a noise that changes during gentle S-turns at 30-65 mph. The fix is replacement of the complete wheel hub/bearing assembly (sold as a unit). On 2014-2018 Foresters the front complete hub unit is OEM 28473FL040 (supersedes 28473FJ000/28473FJ020); reuse a new self-locking axle nut and torque to spec. Have an alignment checked, as poor alignment and unbalanced tires accelerate bearing failure. Replacing in pairs is common practice.
Medium ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2009-2019 Subaru Forester, the front CV (constant-velocity) axle boots on Foresters crack and tear with age and from suspension flex and road debris. Once the boot splits, grease slings out and dirt/water get in, so the now-dry CV joint wears and produces a clicking or popping that is loudest during tight, low-speed turns. Left unrepaired the joint fails completely, risking loss of drive to that wheel. Owners frequently spot a ring of slung grease on the inner fender or underbody before any noise.
Common Symptoms
Clicking or popping during tight low-speed turns
Grease flung onto the inner fender/underbody
Torn or cracked rubber CV boot
Rhythmic grinding under acceleration when turning
Vibration that worsens with speed (failing joint)
How to Fix
Inspect the inner and outer CV boots at every service for cracks or grease slinging. A freshly torn boot caught early can be re-booted and repacked, but a joint that already clicks needs the CV joint or, more commonly, a complete remanufactured/new front axle assembly (sold per side). Use quality OEM-grade axles; cheap aftermarket axles are a known repeat-failure complaint.
Medium ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
Community reported
1,800 owners
On the 2014-2021 Subaru Forester, the Lineartronic CVT (TR690) in 2014-2021 Foresters can develop shuddering, hesitation, and in severe cases, complete failure. Symptoms typically begin around 60,000-100,000 miles. The CVT chain can stretch, causing slippage and shudder during light acceleration. The torque converter can also develop issues. Subaru extended CVT warranty to 10 years/100,000 miles under Customer Satisfaction Program WTY-72. Multiple software updates have been released to address shifting behavior.
Common Symptoms
Shuddering during light acceleration at 15-40 mph
Hesitation or delay when accelerating from a stop
CVT whining or droning noise
Rough engagement into Drive or Reverse
Transmission warning light on dashboard
How to Fix
Have the dealer check for and apply the latest CVT software updates (TSB 16-103-17R). Perform CVT fluid change with Subaru CVT Fluid Lineartronic II (SOA427V1700). If shuddering persists, torque converter replacement or complete CVT replacement may be needed. Verify coverage under Subaru's 10-year/100,000-mile CVT warranty extension.
High Confidence1,800 reportsLast reported by owners Feb 2026Reviewed Feb 2026
On the 2017-2020 Subaru Forester, foresters equipped with a Denso low-pressure fuel pump (part-number prefix 42022-) built before mid-2019 use a low-density plastic impeller that absorbs fuel, swells and deforms inside the pump housing. The deformed impeller binds against the housing and abruptly cuts fuel delivery, causing the engine to hesitate, run rough, fail to start, or stall without warning while driving — a crash risk. The defect is covered by NHTSA recall 21V-587 (one of several Subaru/Denso fuel-pump campaigns) and a class-action settlement that extended the pump warranty to 15 years/150,000 miles on replaced units.
Common Symptoms
Sudden engine stalling while driving
Long crank / no-start, especially when warm
Hesitation and surging under acceleration
Rough running and rough idle
Whining or no priming sound from the tank
How to Fix
Have the VIN checked for the open fuel-pump recall and get the complete in-tank fuel pump assembly (Denso, 42022- prefix) replaced free under the recall — the new assembly uses a higher-density impeller that resists swelling. Out of warranty, replace the entire module (pump, sender, filter sock) rather than just the impeller; budget for intermittent stalling diagnosis since the failure can be load/temperature dependent and may not store a code.
Medium ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
Community reported
1,400 owners
On the 2019-2025 Subaru Forester, 5th generation Foresters (2019+) have widespread reports of windshield cracks initiating near the EyeSight camera housing area or from the edges with no impact. The windshield design incorporates an acoustic interlayer and EyeSight camera calibration zone that creates stress concentrations. Temperature changes commonly trigger cracks. Replacement windshields must be EyeSight-compatible and require camera recalibration. Subaru has not issued a recall but dealerships have handled some replacements under goodwill.
Common Symptoms
Crack appearing near EyeSight camera housing without impact
Crack starting from windshield edge and spreading
EyeSight system disabled due to cracked windshield
Crack appearing after temperature changes
Multiple cracks developing in short period
How to Fix
Document the crack with photos immediately. Contact Subaru customer service (1-800-782-2783) to request goodwill coverage. Replacement requires Subaru-approved EyeSight-compatible windshield and dealer calibration of EyeSight cameras ($200-400 for calibration alone). Aftermarket windshields from Pilkington or Mopar are available but must be EyeSight-rated. Some owners have had success with Subaru covering costs under goodwill after persistent complaints.
High Confidence1,400 reportsLast reported by owners Feb 2026Reviewed Feb 2026
On the 2014-2022 Subaru Forester, forester moonroofs drain rainwater through small tubes routed down the A/B pillars to discharge under the car. The corner drains clog with pollen, dirt and tree debris, or a tube pops off its nipple at the sunroof gutter. Water then backs up and overflows into the headliner and cabin, soaking the carpet, fogging windows, and — because water pools near floor electronics — sometimes causing electrical gremlins. The leak is often misdiagnosed as a seal failure when it is really a blocked drain.
Common Symptoms
Water dripping from the headliner or A-pillar in rain
Wet front or rear floor carpet
Musty smell / interior fogging
Water heard sloshing in the roof or pillars
Intermittent electrical faults from wet floor connectors
How to Fix
Periodically clear the four sunroof drain tubes (low-pressure compressed air or a soft trimmer line) and confirm flow exits under the vehicle. Re-seat any tube that has detached from the gutter nipple. Dry out wet carpet/padding promptly to prevent mold and corrosion of under-seat electrical connectors. Replace the perimeter seal only if drains are confirmed clear and water still enters.
Medium ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2014-2018 Subaru Forester, on power-liftgate Foresters the gas-charged lift struts lose pressure prematurely. The gate opens under power but then sags or falls shut under its own weight once fully open, and the problem worsens in cold weather as strut gas pressure drops. A weak or failing strut can also confuse the obstruction-detection system, causing the powered gate to reverse or beep. Subaru issued a warranty extension on the liftgate struts for affected vehicles.
Common Symptoms
Liftgate slowly sags or falls shut when fully open
Worse in cold weather
Power gate beeps and reverses partway
Gate feels heavy / hard to hold up manually
Gate won't latch in the open position
How to Fix
Check for the liftgate-strut warranty extension and have weak struts replaced. The gas struts/lift supports are replaced in pairs; the gate must be securely propped or held during the job because it is heavy. If the gate also beeps or stops mid-travel after the struts are good, suspect the power drive unit or obstruction sensor rather than the struts.
Medium ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2011-2021 Subaru Forester FB25, foresters commonly throw a P0420 'Catalyst System Efficiency Below Threshold (Bank 1)' code and an illuminated check-engine light. While the converter itself is the part that degrades, the underlying root cause on FB25 Foresters is frequently the well-documented excessive-oil-consumption defect: burnt oil and unburned fuel coat and contaminate the catalyst, reducing its efficiency until it can no longer pass the downstream O2 sensor's efficiency check. Coolant intrusion and exhaust leaks can produce the same result. Subaru issued a service program (WVI-19/WVI-19R) extending the catalytic converter coverage to 10 years/100,000 miles on certain affected vehicles, and the related Yaeger oil-consumption settlement (2011-2014 models) extended engine warranty to 8 years/100,000 miles.
Common Symptoms
Check engine light with P0420 stored
Failed emissions/smog test
Rotten-egg/sulfur smell from exhaust
Reduced fuel economy
Often paired with excessive oil consumption
How to Fix
Before condemning the converter, rule out cheaper causes: a lazy/failed rear O2 sensor and exhaust leaks can both mimic P0420. Verify the engine is not consuming oil at an excessive rate (a contaminated cat will quickly re-fail if oil consumption is unaddressed). Check VIN eligibility against Subaru service program WVI-19 (10yr/100k extended cat warranty) and the Yaeger oil-consumption settlement before paying out of pocket. If the catalyst is genuinely degraded, replace with a CARB-compliant OEM or direct-fit converter and a new rear O2 sensor.
Medium ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2009-2018 Subaru Forester, foresters commonly throw front oxygen/air-fuel-ratio sensor heater-circuit codes (P0031 low, P0037 downstream) as the sensors age. The sensors live on the hot exhaust, so the wiring harness near them turns brittle and chafes, and the internal heater element degrades. The result is an illuminated check-engine light, slightly richer/leaner running while the heater is cold, and a guaranteed emissions-test failure. Many owners replace the sensor only to find the real fault is damaged harness wiring at the connector.
Common Symptoms
Check-engine light with P0031 or P0037
Failed emissions/smog test
Slightly reduced fuel economy
Occasional rough cold running
No drivability change in some cases (code only)
How to Fix
Scan and confirm the exact code, then inspect the sensor connector and pigtail for melted, chafed or broken wires before condemning the sensor — repair the harness if damaged. If the heater element itself is open, replace the front air/fuel ratio sensor with the OEM-spec part (Subaru sources Denso/NTK); aftermarket universal sensors often re-trigger the code. Clear codes and verify heater operation.
Medium ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2014-2018 Subaru Forester, the forward (front) bushing in the front lower control arms wears out prematurely on 4th-gen (SJ) Foresters, often by 40,000-70,000 miles on normally-driven, paved-road vehicles. As the bushing degrades it allows the control arm to shift, producing a rattle/clunk, a vibration or shudder felt through the steering wheel (especially on highway turns or undulations), uneven outer-edge tire wear, and a vague, unstable steering feel. Subaru acknowledged the design issue in TSB 05-63-18 and revised the production bushing. This is distinct from the rear suspension bushing clunk and is frequently misdiagnosed as a worn steering rack.
Common Symptoms
Clunk / rattle from front suspension over bumps
Vibration or shudder in steering wheel at highway speed
Wandering, unstable, or vague steering
Uneven outer-edge front tire wear
Knocking felt when turning
How to Fix
Per TSB 05-63-18, replace the front lower control arm forward bushings (or the complete control arms) with the updated parts, then perform a four-wheel alignment. Independent shops typically replace both control arms as assemblies; budget roughly $400-700 per side in parts and labor, or about $900-1,400 for the pair plus alignment.
High ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
On the 2014-2018 Subaru Forester, in regions with heavy road-salt exposure, the steering rack/pinion (EPS) gearbox housing on 4th-gen Foresters can corrode to the point a crack forms in the gearbox body. This produces uneven or notchy steering effort and, in advanced cases, a knock or play in the rack. Subaru documented the concern in TSB 04-21-18 (July 2018) and issued an Electronic Power Steering gearbox warranty extension for 2012-2018 vehicles. Occurrences are concentrated in the rust belt and are described as limited, but the repair is expensive when out of coverage.
Common Symptoms
Uneven or notchy steering effort
Clunk or play in the steering rack
Visible corrosion on the steering gearbox housing
Steering feels heavier in one direction
How to Fix
Subaru extended the warranty on the EPS gearbox assembly for affected 2012-2018 vehicles — owners in salt regions should check VIN-specific coverage and have a dealer inspect for housing corrosion/cracks. The remedy is replacement of the steering gearbox (rack) assembly. Out of coverage, a complete electric rack replacement plus alignment typically runs $1,200-2,200.
High ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
Community reported
680 owners
On the 2014-2020 Subaru Forester FB25, foresters with the 2.5L FB25 engine experience premature A/C compressor failures, often with a noisy clutch or complete seizure. The compressor clutch bearing fails first, creating a grinding or squealing noise when the A/C is engaged. If not addressed, the compressor can seize and send metal debris through the entire A/C system, requiring replacement of the condenser, receiver/drier, and expansion valve in addition to the compressor. The issue is common between 60,000-120,000 miles.
Common Symptoms
Grinding or squealing noise when A/C is turned on
A/C blowing warm air intermittently
A/C clutch clicking on and off rapidly
Complete loss of cold air from vents
Burning rubber smell from engine bay when A/C is on
How to Fix
Replace A/C compressor assembly (Denso 471-6050 or Subaru OEM 73111SG010). If compressor seized and sent debris, flush the entire system and replace condenser, receiver/drier (Subaru 73520FJ001), and expansion valve. Use PAG 46 oil and charge with R-134a to factory spec (15.5 oz). A/C clutch relay and pressure switch should be tested before assuming compressor failure.
High Confidence680 reportsLast reported by owners Feb 2026Reviewed Feb 2026
On the 2009-2021 Subaru Forester, foresters are prone to early front brake rotor distortion (thickness variation) that produces a pronounced pulsation/judder felt through the steering wheel and brake pedal when braking, often appearing at relatively low mileage. Owners across multiple generations report warped/judder-prone front rotors, and machining or same-part replacement frequently doesn't last. Subaru has acknowledged brake judder across its lineup with a revised front brake pad material via TSB (e.g. 06-91-24R on related Legacy/Outback/Ascent platforms). A caliper piston or seized slide pin not fully retracting (dragging pad) accelerates the heat cycling that distorts the rotor.
Common Symptoms
Steering wheel and pedal vibration/shudder when braking, especially above 40 mph
Pulsation that returns a few thousand miles after rotors are resurfaced or replaced
Uneven rotor thickness / visible scoring at inspection
Brake judder reappearing prematurely under normal driving
How to Fix
Replace front rotors and pads — ideally with updated-material brake hardware rather than resurfacing the original rotors. Inspect and service the front calipers and slide pins so a dragging piston/pin isn't re-warping the new rotors; use proper torque and an even bed-in procedure.
Low ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jul 2026
On the 2017-2018 Subaru Forester FB25 2.5L, certain 2017-2018 Forester A/C condensers corrode internally within the tube walls (distinct from the more common external road-debris puncture). The corrosion perforates the condenser, refrigerant and oil leak out, and the A/C blows warm. Subaru opened service program WRB-21 to inspect and replace affected condensers. Because the condenser sits at the front of the vehicle, it is also a frequent victim of stone/debris impact, but the WRB-21 cases are corrosion-driven from the inside out.
Common Symptoms
A/C blows warm or only intermittently cold
Greasy/oily residue on the condenser fins
Refrigerant drips under the front of the car
Loss of refrigerant charge over a season
A/C cools at highway speed but not at idle
How to Fix
Check the VIN for service program WRB-21 coverage and have the condenser inspected/replaced under the program if eligible. Diagnose a no-cool complaint with a UV dye/leak test — a greasy film or drips on the condenser fins confirm the leak. Replacement requires a new condenser, receiver/drier, system evacuation and recharge.
Medium ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
Campaign #25V419000
19/06/2025
EQUIPMENT:OTHER:LABELS
Subaru of America, Inc. (Subaru) is recalling certain 2026 Crosstrek Hybrid, 2025-2026 Forester Hybrid, Forester, and 2019-2026 Ascent vehicles. These vehicles were manufactured with an incorrect Gross Axle Weight Rating (GAWR) on the certification label. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) 110, "Tire selection and rims."
Reliability varies across model years of the Subaru Forester. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 1998-2025 Subaru Forester with 33 documented issues documented across 7,080+ owner reports.
What is the 2011-2018 Subaru Forester FB25 Engine Excessive Oil Consumption?
The 2.5L FB25 engine in 2011-2018 Foresters is widely reported for excessive oil consumption, often burning 1 quart every 1,000-1,500 miles. The root cause is defective piston rings that fail to maintain proper oil control. Subaru acknowledged the issue with TSB 02-157-14R and ex… Repairs typically run $0-$4,500. Severity: high.
What is the 2014-2021 Subaru Forester CVT Transmission Shudder and Premature Failure?
The Lineartronic CVT (TR690) in 2014-2021 Foresters can develop shuddering, hesitation, and in severe cases, complete failure. Symptoms typically begin around 60,000-100,000 miles. The CVT chain can stretch, causing slippage and shudder during light acceleration. The torque conve… Repairs typically run $0-$8,000. Severity: high.
What is the 1998-2010 Subaru Forester EJ25 Head Gasket Failure (External Leak)?
The EJ25 2.5L horizontally-opposed engine in 1998-2010 Foresters is notorious for external head gasket failure. Unlike typical blown head gaskets that cause overheating, the Subaru EJ25 gaskets fail externally, leaking coolant and oil down the sides of the engine. The failure is… Repairs typically run $1,800-$3,500. Severity: high.
What is the 2014-2018 Subaru Forester Rear Coil Spring Corrosion Fracture (Recall WUT-05) — Spring Snaps in Salt-Belt States?
On Foresters operated in road-salt regions, stone and debris impact chips the protective coating on the rear coil springs. Bare spring steel then pits and corrodes, and a section of the lower coil can fracture and break away. A broken spring end can contact and puncture the rear… Repairs typically run $0-$700. Severity: high.
What is the 2019-2021 Subaru Forester EyeSight False / Phantom Automatic Emergency Braking?
Forester owners report the EyeSight pre-collision braking system applying hard braking with no obstacle present, including on open highways and curves, plus erratic lane-keep-assist interventions, all attributed to the windshield-mounted stereo-camera assembly. A class action ove… Severity: high.
What is the 2019-2020 Subaru Forester Starlink DCM Parasitic Battery Drain After 3G Network Shutdown?
The Data Communications Module (DCM) that powers Starlink keeps trying to reach the defunct cellular 3G network and fails to sleep, drawing excess current with the car off and killing the battery, causing repeated dead-battery no-starts even after a new battery is installed. A cl… Severity: high.
What is the 2023-2024 Subaru Forester Front Driveshaft Outer Race Crack and Breakage (Recall WRP-23)?
Certain 2023-2024 Foresters left the factory with a front drive shaft assembly whose outer race was improperly cooled during manufacturing and can crack, then break over time, causing loss of motive power or a rollaway if parked without the parking brake. Recall WRP-23 (NHTSA 23V… Severity: high.
What is the 2019 Subaru Forester PCV Valve Separation Causing Loss of Power and Engine Damage (Recall WUW-08)?
On 2019 Foresters with the FB25 boxer engine, the aluminum PCV valve can separate during heating/cooling cycles, allowing valve fragments to enter the engine and cause a sudden loss of power while driving. Subaru recalled roughly 51,613 2019 Crosstrek/Forester/Ascent vehicles und… Severity: high.
What is the 2009-2013 Subaru Forester Secondary Air Injection Pump Relay Failure — Overheat / Fire Risk (Turbo XT, Recall WTM-73 / NHTSA 16V-738)?
On turbocharged Forester XT models, the relay controlling the secondary air injection (SAI) pump can fail in the closed position, leaving the air pump running continuously. Sustained operation overheats the pump, which can melt surrounding components and create a fire risk even w… Repairs typically run $0-$120. Severity: high.
What is the 2014-2016 Subaru Forester Brake Light Switch Silicone Contamination — No-Start / Stuck in Park (Recall WUE-90 / NHTSA 19V-149)?
Silicone gas outgassed from in-cabin consumer products (cleaners, air fresheners, protectants) can seep into the brake lamp switch housing, where it forms an insulating silicon-dioxide deposit on the contact terminals. Because the brake switch on these Foresters feeds the transmi… Repairs typically run $0-$90. Severity: high.
What is the 2015-2018 Subaru Forester Front Passenger Occupant Detection System (ODS) Sensor Mat Harness Failure — Airbag Warning Light and Deactivated Passenger Airbag?
The Occupant Detection System sensor mat wiring harness in the front passenger seat cushion develops an unstable electrical connection (decreased contact pressure between terminals). This causes the SRS airbag warning light to illuminate and the passenger frontal airbag to deacti… Repairs typically run $0-$1,700. Severity: high.
What is the 2009-2013 Subaru Forester Takata Front Passenger Airbag Inflator Rupture Risk (PSAN) — Safety Recall?
Certain 2009-2013 Foresters are equipped with a Takata-sourced front passenger frontal airbag inflator using non-desiccated phase-stabilized ammonium nitrate (PSAN). Over years of exposure to heat and humidity, moisture intrusion can degrade the propellant so the inflator over-pr… Repairs typically run $0-$0. Severity: high.
What is the 2004-2013 Subaru Forester EJ255 Turbo Piston Ringland Cracking and Engine Failure (Forester XT)?
The turbocharged EJ255 has thin, cast-piston ringlands that crack under detonation. The large bore, high cylinder temperatures and a flat oil pan that lets oil slosh away from the pickup under cornering make the engine vulnerable: a single knock event (low-octane fuel, poor tune,… Repairs typically run $4,000-$8,000. Severity: high.
What is the 2009-2013 Subaru Forester Turbo Failure From Clogged Oil-Supply Banjo Bolt Filter (Forester XT, EJ255)?
The turbocharger oil-feed line on the EJ255 uses a banjo (union) bolt containing a fine mesh screen meant to keep debris out of the turbo. As the engine ages or oil-change intervals stretch, sludge and carbon clog the screen and starve the turbo of oil. The turbo bearing then ove… Repairs typically run $1,500-$3,500. Severity: high.
What is the 2017-2020 Subaru Forester Denso Low-Pressure In-Tank Fuel Pump Failure Causing Sudden Stalling?
Foresters equipped with a Denso low-pressure fuel pump (part-number prefix 42022-) built before mid-2019 use a low-density plastic impeller that absorbs fuel, swells and deforms inside the pump housing. The deformed impeller binds against the housing and abruptly cuts fuel delive… Repairs typically run $0-$1,300. Severity: high.
What is the 2019-2025 Subaru Forester Windshield Spontaneous Cracking Near EyeSight Camera?
5th generation Foresters (2019+) have widespread reports of windshield cracks initiating near the EyeSight camera housing area or from the edges with no impact. The windshield design incorporates an acoustic interlayer and EyeSight camera calibration zone that creates stress conc… Repairs typically run $500-$1,500. Severity: medium.
What is the 2014-2020 Subaru Forester A/C Compressor Failure and Clutch Noise?
Foresters with the 2.5L FB25 engine experience premature A/C compressor failures, often with a noisy clutch or complete seizure. The compressor clutch bearing fails first, creating a grinding or squealing noise when the A/C is engaged. If not addressed, the compressor can seize a… Repairs typically run $600-$2,200. Severity: medium.
What is the 2009-2018 Subaru Forester Premature Front and Rear Wheel Bearing/Hub Failure (Faulty Backing Plate Design)?
Forester wheel bearings (both front and rear hub assemblies) fail prematurely, often well before 100,000 miles. The most consistent symptom is a low-pitched grinding, humming or 'airplane' droning noise from the affected corner that grows louder with speed; rear bearing wear is o… Repairs typically run $250-$600. Severity: medium.
What is the 2009-2022 Subaru Forester Ignition Coil Failure Causing Misfire and Hard Cold-Weather Starting?
Coil-on-plug ignition coils on the Forester are a common failure point. As the coil's internal epoxy/resin cracks with heat and age, the coil produces erratic or insufficient spark, causing single-cylinder misfires, rough idle, hesitation on acceleration, reduced fuel economy and… Repairs typically run $60-$350. Severity: medium.
What is the 2011-2021 Subaru Forester Catalytic Converter Efficiency Failure (P0420) — Often Triggered by Oil-Burning Contamination?
Foresters commonly throw a P0420 'Catalyst System Efficiency Below Threshold (Bank 1)' code and an illuminated check-engine light. While the converter itself is the part that degrades, the underlying root cause on FB25 Foresters is frequently the well-documented excessive-oil-con… Repairs typically run $200-$2,200. Severity: medium.
