According to Au7o's analysis of 580+ owner reports, the 2018 Alfa Romeo Giulia has 12 documented known issues, with 6 rated critical. The most serious are Low-Pressure Fuel Pump Failure Causing Stall (Recall 25V-586) ($200-$2,000 repair), Turbo Coolant Line Leak ($300-$800 repair), Electrical Faults from Water Intrusion / BCM Failure ($300-$1,500 repair), Contaminated Brake/Clutch Fluid (Reduced Braking), Low-Pressure Fuel Pump Failure (Sudden Power Loss) ($700-$1,400 repair) and Timing Chain Rattle / Oil Pump Bolt Loosening (2.0T) ($800-$3,000 repair). The most commonly reported issue is Low-Pressure Fuel Pump Failure Causing Stall (Recall 25V-586) with 175 owner reports. Across all issues with published estimates, repair costs range from $150 to $3,000. DIY maintenance guides at au7o.io.
Chrysler (FCA US, LLC) is recalling certain 2024 Alfa Romeo Giulia vehicles. The wiring harness may have been misrouted, which can cause the headlights to fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Campaign #25V84500009/12/2025
BACK OVER PREVENTION:DISPLAY FUNCTION
Chrysler (FCA US, LLC) is recalling certain 2020-2025 Alfa Romeo Giulia and Alfa Romeo Stelvio vehicles. The printed circuit board and software for the rearview camera may contain defects that cause the rearview camera image not to display properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
Campaign #25V66700007/10/2025
EQUIPMENT:OTHER:LABELS
Chrysler (FCA US, LLC) is recalling certain 2017-2024 Alfa Romeo Giulia and 2021-2024 Alfa Romeo Stelvio vehicles. The tire pressure and size information on the tire placard and manufacturer labels are incorrect. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 110, "Tire Selection and Rims."
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What are the most common Alfa Romeo Giulia problems?
According to Au7o's analysis of 580+ owner reports, the 2018 Alfa Romeo Giulia has 12 documented issues. The most frequently reported are: Low-Pressure Fuel Pump Failure Causing Stall (Recall 25V-586), Turbo Coolant Line Leak, Electrical Faults from Water Intrusion / BCM Failure. Of these, 6 are rated critical and should be addressed promptly.
Is the Alfa Romeo Giulia reliable?
The 2018 Alfa Romeo Giulia has 12 known issues documented across 580+ owner reports. 6 issues are rated critical: Low-Pressure Fuel Pump Failure Causing Stall (Recall 25V-586) and Turbo Coolant Line Leak and Electrical Faults from Water Intrusion / BCM Failure and Contaminated Brake/Clutch Fluid (Reduced Braking) and Low-Pressure Fuel Pump Failure (Sudden Power Loss) and Timing Chain Rattle / Oil Pump Bolt Loosening (2.0T). 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 Alfa Romeo Giulia problems?
Repair costs for known Alfa Romeo Giulia issues range from $0 to $3,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Low-Pressure Fuel Pump Failure Causing Stall (Recall 25V-586), typically costs $200-$2,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2017-2026 Alfa Romeo Giulia Low-Pressure Fuel Pump Failure Causing Stall (Recall 25V-586)?
2017+ Giulias can experience sudden engine stall or no-start due to a defective low-pressure fuel pump inside the fuel delivery module. The pump's internal commutator wears prematurely and loses contact, cutting fuel supply at any speed. NHTSA recall 25V-586 (Stellantis campaign… Repairs typically run $200-$2,000. Severity: high.
What is the 2017-2026 Alfa Romeo Giulia Turbo Coolant Line Leak?
The turbocharger coolant supply and return lines develop leaks at the crimped fittings, causing coolant loss and potential overheating. The plastic quick-connect fittings become brittle from heat cycling. Repairs typically run $300-$800. Severity: high.
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.
On the 2017-2026 Alfa Romeo Giulia, 2017+ Giulias can experience sudden engine stall or no-start due to a defective low-pressure fuel pump inside the fuel delivery module. The pump's internal commutator wears prematurely and loses contact, cutting fuel supply at any speed. NHTSA recall 25V-586 (Stellantis campaign 93C) covers free replacement. Symptoms include stalling at idle, no-start hot, and intermittent fuel pump prime noise from the rear of the vehicle. Failures cluster at 30,000-80,000 miles.
Have the ECM and wiring harness inspected at an Alfa Romeo dealer. FCA has issued TSB 18-024-17 REV.A addressing the wiring harness routing. ECM replacement with updated software may be required.
High Confidence175 owner reportsLast reported by owners Mar 2026Reviewed Mar 2026
On the 2017-2022 Alfa Romeo Giulia, water enters the cowl/firewall area (failed bulkhead gasket, detached fresh-air vent, or clogged A/C evaporator drain) and drips onto the Body Control Module and wiring loom in the passenger footwell. The resulting corrosion and shorts cause wide-ranging, intermittent electrical failures. Owners have reported headlights, brake lights, turn signals, and driver-assist systems all cutting out at speed, plus dead batteries and warning-light storms.
Fix the water-intrusion source first (reseal bulkhead gasket, reattach fresh-air vent, clear the A/C drain) before replacing electronics. A water-damaged BCM must be replaced and re-programmed with a proxy alignment (not plug-and-play); used modules often require harness re-pinning. Dry and inspect the footwell wiring loom.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
reseal the confirmed water-entry seam before BCM or harness remediation Fitment/availability: Universal sealing material only where water testing identifies a Giulia fresh-air inlet or nonstructural bulkhead seam specified for 3/8-inch n…
On the 2017-2026 Alfa Romeo Giulia, the Uconnect infotainment system reboots randomly during driving, losing navigation, audio, and phone connectivity. The system can take 30-60 seconds to restart, leaving the driver without backup camera or climate controls.
Update the Uconnect software to the latest version. Perform a factory reset if issues persist. Some units require hardware replacement of the head unit.
High Confidence145 owner reportsLast reported by owners Mar 2026Reviewed Mar 2026
On the 2017-2021 Alfa Romeo Giulia, owners frequently report the 12V battery draining when the car sits for several days, often traced to modules not sleeping properly, a faulty Intelligent Battery Sensor (IBS), or BCM-related charging logic. Symptoms include battery warning lights after 4-5 days of inactivity, stop-start system failures, and corroded/leaking batteries. Measured parasitic draw stays elevated (250mA+) instead of dropping to a low sleep current.
Replace a faulty Intelligent Battery Sensor (IBS) with the revised part, which has resolved intermittent drain for many owners. Address any BCM water damage and apply available software updates to correct charging/sleep logic; verify with a parasitic-draw test and replace the battery if internally damaged.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
replace a circuit-tested failed IBS/negative-terminal assembly; not a generic cure for parasitic draw Fitment/availability: Alfa Romeo Giulia from 2016 onward as listed, OE comparison numbers 50543928/50548044/68341007AA; confirm VIN and…
On the 2017-2018 Alfa Romeo Giulia, a batch of Giulias and Stelvios left the assembly plant with brake and clutch fluid contaminated by an incompatible mineral oil. The contamination can swell seals and degrade braking performance, in some cases producing system failure with little warning. NHTSA/Alfa identified roughly 307 affected vehicles built in a specific window.
Common Symptoms
Decreased braking performance
Soft or spongy brake pedal
Brake warning light
Reduced clutch feel
How to Fix
Under the recall, dealers inspect the braking system and replace the affected brake/clutch fluid and components as necessary, free of charge. Out of warranty, a full brake fluid flush with the correct DOT-spec fluid and seal inspection is the remedy.
On the 2017-2026 Alfa Romeo Giulia, the front brakes produce excessive squeal during light braking and generate heavy brake dust. The aggressive OEM pad compound prioritizes stopping power over noise and dust characteristics.
Replace the OEM brake pads with a ceramic compound alternative for reduced noise and dust. Clean and lubricate the caliper slide pins and apply anti-squeal shims. The Quadrifoglio Brembo calipers need specific QV pads.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
EBC Redstuff DP32325C low-dust ceramic front brake pads
replace serviceable noisy/dusty front pads with a matched low-dust street compound Fitment/availability: 2017-2021 Alfa Romeo Giulia 2.0L Turbo, front option DP32325C; confirm VIN, caliper and rotor dimensions, excludes Quadrifoglio and …
Hawk Performance Ceramic HB616Z.607 front brake pads
low-dust, quieter street pad branch for matched iron-rotor front brakes Fitment/availability: 2017-2019 Alfa Romeo Giulia Quadrifoglio with iron/metal rotors and listed Base/Ti applications using the same six-piston pad shape; explicitly…
Genuine Alfa Romeo/Brembo Giulia Quadrifoglio CCM front brake-pad set
correct pad branch for the optional carbon-ceramic front brake system Fitment/availability: Alfa Romeo Giulia Quadrifoglio 2.9L with optional carbon-ceramic braking system only; includes four front pads, shims, pins, wear sensors and spr…
High Confidence110 owner reportsLast reported by owners Mar 2026Reviewed Mar 2026
Community reported
65 owners
On the 2017-2026 Alfa Romeo Giulia 2.0L Turbo I4, the turbocharger coolant supply and return lines develop leaks at the crimped fittings, causing coolant loss and potential overheating. The plastic quick-connect fittings become brittle from heat cycling.
Replace the turbo coolant lines with updated Mopar parts that use improved fittings. Check the coolant level and top off with the correct FCA MS-90032 coolant. Pressure test the system after repair.
Medium Confidence65 owner reportsLast reported by owners Mar 2026Reviewed Mar 2026
On the 2017-2019 Alfa Romeo Giulia, the in-tank low-pressure fuel pump assembly can warp/degrade from underhood and operating heat, reducing or stopping fuel flow to the engine. This causes engine fuel starvation, leading to stalling or a sudden loss of motive power (LOMP) while driving, often without warning. NHTSA opened preliminary evaluation PE24-003 and the issue escalated to a full recall (25V586) covering roughly 53,849 Giulia and Stelvio vehicles; Stellantis acknowledged 437+ North American complaints and five crashes in Europe.
Under recall 25V586, dealers replace the fuel delivery module (fuel pump assembly) free of charge. Owners experiencing stalling, hard starts, or P0087 low fuel rail pressure codes should have the fuel pump tested for pressure dropout and replaced. Out of warranty, fuel pump module replacement typically runs in the listed range.
On the 2017-2019 Alfa Romeo Giulia, on the 2.0L turbo four-cylinder, owners report a metallic rattle at cold/hot start, attributed to the timing chain tensioner waiting for oil pressure or, in some cases, a loose wastegate actuator. More seriously, early 2017-2018 engines had an oil pump mounting bolt that could loosen, dropping oil pressure and accelerating chain/actuator wear; some owners found metal particles in the oil. Alfa updated the oil pump on 2019/2020+ engines.
Diagnose the rattle source: tighten/replace the wastegate actuator if loose, or replace the timing chain assembly and camshaft actuators (variable valve timing solenoids) if the chain has stretched. For affected early engines, inspect/re-torque or replace the oil pump with the updated part. Maintain shorter oil-change intervals (around 6,000 miles) with correct-spec oil.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
Aftermarket complete timing-chain kit 1450109MM for Alfa Romeo Giulia 2.0
replace a measured worn or stretched timing-chain system; not an oil-pump or wastegate repair Fitment/availability: Alfa Romeo Giulia 2.0 from 2016 onward as listed; confirm VIN, GME-T4 engine code, kit contents and installed/superseded …
On the 2017-2026 Alfa Romeo Giulia 2.0L Turbo I4, the Giulia Q4 AWD system can develop two related transfer case symptoms with age: a perceptible jolt or slip during light-throttle acceleration in 2nd-3rd gear (output-shaft clutch wear) and a resonant low-frequency rumble at highway speed around 4th-5th gear (worn output bearings). Both are exacerbated by infrequent transfer-case fluid changes. The original 'whining during low-speed turns' description was incorrect — that pattern matches differential wear, not the Q4 transfer case.
Drain and refill the transfer case with the correct Alfa Romeo-specified fluid. If noise persists, the transfer case clutch pack assembly needs replacement. FCA extended warranty coverage for some VINs.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
Petronas Tutela Transmission Transfer Case SAE 75W fluid, 1 liter
refill a leak-free serviceable transfer case after draining/inspection; does not repair worn bearings or clutch packs Fitment/availability: All-wheel-drive Alfa Romeo Giulia Q4 transfer case as explicitly listed; SAE 75W API GL-5, FIAT 9…
Medium Confidence85 owner reportsLast reported by owners Mar 2026Reviewed Mar 2026
On the 2017-2022 Alfa Romeo Giulia, beyond its electrical consequences, the Giulia has a recurring water-leak problem where rain or car-wash water enters via the cowl under the windshield, a failed firewall/bulkhead seal, or a clogged A/C evaporator drain, soaking the passenger footwell carpet. Dealers report seeing the detached fresh-air vent and bulkhead leak repeatedly. Standing water promotes mold, odor, and downstream electronics corrosion.
Common Symptoms
Wet passenger or driver footwell carpet
Water dripping from under the dash
Musty/mold odor in cabin
Foggy windows
Leaks after rain or car wash
How to Fix
Identify the source: reseal the bulkhead gasket, reattach the fresh-air inlet vent, clear or extend the A/C evaporator drain tube, and confirm cowl drains are unobstructed. Dry the carpet and underlayment thoroughly and inspect any footwell electronics for water damage.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
reseal the diagnosed seam after cleaning and drying the surfaces Fitment/availability: Universal sealing material only for a water-tested Giulia housing or nonstructural bulkhead seam whose repair calls for 3/8-inch non-curing ribbon; co…
On the 2017-2021 Alfa Romeo Giulia, the ZF 8-speed automatic, combined with throttle-by-wire and brake-by-wire, can shift harshly or hunt between gears (commonly around 3rd-4th) at low speed and light throttle, and jerk when transitioning off the auto stop-start neutral state. The behavior is exaggerated in Dynamic (D) mode where shift mapping is intentionally aggressive, and worsens when the powertrain is cold.
Common Symptoms
Jerking back and forth at low speed
Harsh shifts in Dynamic mode
Gear hunting at light throttle
Hesitation pulling away from stop
How to Fix
Have the dealer open a case to apply ECM/TCM software updates and reprogramming, which smooths shift quality for many owners. As a workaround, disable auto stop-start and use Normal/All-Weather modes for low-speed driving; ensure the car is fully warmed up. Verify transmission fluid level/condition if symptoms persist.
Chrysler (FCA US, LLC) is recalling certain 2017-2024 Alfa Romeo Giulia, 2018-2025 Alfa Romeo Stelvio, 2019-2023 Fiat 500X, Jeep Renegade, and 2024 Fiat 500E vehicles. A seat belt buckle switch sensor may be improperly connected, preventing the front seat air bag from deploying as intended.
Campaign #24V51000003/07/2024
Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.
What is the 2017-2022 Alfa Romeo Giulia Electrical Faults from Water Intrusion / BCM Failure?
Water enters the cowl/firewall area (failed bulkhead gasket, detached fresh-air vent, or clogged A/C evaporator drain) and drips onto the Body Control Module and wiring loom in the passenger footwell. The resulting corrosion and shorts cause wide-ranging, intermittent electrical… Repairs typically run $300-$1,500. Severity: high.
What is the 2017-2018 Alfa Romeo Giulia Contaminated Brake/Clutch Fluid (Reduced Braking)?
A batch of Giulias and Stelvios left the assembly plant with brake and clutch fluid contaminated by an incompatible mineral oil. The contamination can swell seals and degrade braking performance, in some cases producing system failure with little warning. NHTSA/Alfa identified ro… Severity: high.
What is the 2017-2019 Alfa Romeo Giulia Low-Pressure Fuel Pump Failure (Sudden Power Loss)?
The in-tank low-pressure fuel pump assembly can warp/degrade from underhood and operating heat, reducing or stopping fuel flow to the engine. This causes engine fuel starvation, leading to stalling or a sudden loss of motive power (LOMP) while driving, often without warning. NHTS… Repairs typically run $700-$1,400. Severity: high.
What is the 2017-2019 Alfa Romeo Giulia Timing Chain Rattle / Oil Pump Bolt Loosening (2.0T)?
On the 2.0L turbo four-cylinder, owners report a metallic rattle at cold/hot start, attributed to the timing chain tensioner waiting for oil pressure or, in some cases, a loose wastegate actuator. More seriously, early 2017-2018 engines had an oil pump mounting bolt that could lo… Repairs typically run $800-$3,000. Severity: high.
What is the 2017-2026 Alfa Romeo Giulia Infotainment System Random Reboots?
The Uconnect infotainment system reboots randomly during driving, losing navigation, audio, and phone connectivity. The system can take 30-60 seconds to restart, leaving the driver without backup camera or climate controls. Repairs typically run $0-$1,200. Severity: medium.
What is the 2017-2026 Alfa Romeo Giulia Q4 AWD Transfer Case Jolting and Resonance Rumble?
The Giulia Q4 AWD system can develop two related transfer case symptoms with age: a perceptible jolt or slip during light-throttle acceleration in 2nd-3rd gear (output-shaft clutch wear) and a resonant low-frequency rumble at highway speed around 4th-5th gear (worn output bearing… Repairs typically run $300-$2,500. Severity: medium.
What is the 2017-2021 Alfa Romeo Giulia Parasitic Battery Drain / IBS & Stop-Start Faults?
Owners frequently report the 12V battery draining when the car sits for several days, often traced to modules not sleeping properly, a faulty Intelligent Battery Sensor (IBS), or BCM-related charging logic. Symptoms include battery warning lights after 4-5 days of inactivity, sto… Repairs typically run $150-$600. Severity: medium.
What is the 2017-2022 Alfa Romeo Giulia Interior/Cabin Water Leaks (Cowl, Bulkhead, A/C Drain)?
Beyond its electrical consequences, the Giulia has a recurring water-leak problem where rain or car-wash water enters via the cowl under the windshield, a failed firewall/bulkhead seal, or a clogged A/C evaporator drain, soaking the passenger footwell carpet. Dealers report seein… Repairs typically run $150-$800. Severity: medium.
What is the 2017-2026 Alfa Romeo Giulia Front Brake Squeal and Dust?
The front brakes produce excessive squeal during light braking and generate heavy brake dust. The aggressive OEM pad compound prioritizes stopping power over noise and dust characteristics. Repairs typically run $150-$500. Severity: low.
What is the 2017-2021 Alfa Romeo Giulia Jerky / Hunting Transmission at Low Speed (ZF 8-Speed)?
The ZF 8-speed automatic, combined with throttle-by-wire and brake-by-wire, can shift harshly or hunt between gears (commonly around 3rd-4th) at low speed and light throttle, and jerk when transitioning off the auto stop-start neutral state. The behavior is exaggerated in Dynamic… Severity: low.
