2014 Mazda CX-5 Problems: 15 Known Issues

On the 2013-2021 Mazda CX-5 SKYACTIV-D 2.2 (SH / SH-VPTS), the 2.2 SKYACTIV-D uses post-injection of diesel into the cylinder to raise exhaust temperature for diesel particulate filter regeneration. Fuel that is not burned washes past the rings into the sump. If the engine is shut off mid-regeneration - the normal outcome of short urban trips - the cycle never completes, regenerations retry more frequently, and each attempt adds more fuel to the oil. Owners report the dipstick rising well above the maximum mark and sump levels reaching the X/overfill mark in as little as 6,000 km, with some engines regenerating every 240-400 km. Diluted oil loses viscosity and can trigger low oil pressure warnings; in the worst cases dilution feeds a runaway condition. This is specific to the Denso-ECU SKYACTIV-D and is not a SKYACTIV-G gasoline failure - the diesel was widely sold in Europe and Australia and only briefly offered in the US.

On the 2013-2023 Mazda CX-5, direct-injection Skyactiv engines accumulate carbon deposits on intake valves due to oil vapors from the PCV system. Without port injection to clean valves, carbon can fuse to valve surfaces over time, typically appearing around 65,000+ miles.

On the 2013-2018 Mazda CX-5, mAF sensor becomes contaminated with dirt or suffers water damage, providing incorrect air intake readings. Causes vehicle to enter "limp mode" with severe performance degradation.

On the 2013-2016 Mazda CX-5, exhaust manifold gasket becomes deformed from impact (speed bumps, road debris), causing exhaust leaks. Can also develop manifold cracks over time from heat cycling.

On the 2013-2019 Mazda CX-5, rear brake calipers and electronic parking brake (EPB) stick or seize due to moisture accumulation in caliper brackets. This causes uneven brake pad wear, overheating, and premature failure, often before 40,000 miles.

On the 2013-2018 Mazda CX-5 SKYACTIV-D 2.2 (SH / SH-VPTS), the 2.2 SKYACTIV-D runs two EGR valves and recirculates exhaust gas aggressively to meet emissions targets. Soot from that recirculated gas bakes onto the intake shutter valve, the intake manifold runners and the EGR passages; owners have found manifolds and EGR valves 80 percent blocked. Once the shutter valve sticks, airflow control is lost - power falls off progressively, multiple dash warnings appear, and the engine can stall with no restart. Mazda Australia recalled 35,476 diesel Mazda3 (2014-2016), Mazda6 (2012-2018) and CX-5 (2012-2018) vehicles specifically over carbon deposits in the intake shutter valve causing premature wear of engine components, with stated symptoms including increased stopping distance and smoke from the engine bay. The clogged manifold also buries the MAP sensor port, which is the near-universal cause of P0106 on this engine.

On the 2013-2022 Mazda CX-5, wheel bearings fail prematurely due to impact damage (potholes, curbs), contamination from water/salt/grit, or manufacturing defects. Common issue across all model years.

On the 2013-2020 Mazda CX-5, clunking, knocking, or rattling from front suspension caused by dry strut mount bearings, loose sway bar links, worn ball joints, or loose crossbar/cowl bolts.

On the 2013-2016 Mazda CX-5, insufficient corrosion-protective coating was applied to the ends of the external cylinders of the rear hatch/liftgate gas stay dampers on first-generation KE CX-5 vehicles built December 15, 2011 through December 26, 2015. Water carrying road salt enters the exposed cylinder end and corrodes it; over time the corroded strut can fracture as the liftgate is being opened. The hatch then drops suddenly onto whoever is standing under it, and broken strut fragments can be thrown. Roughly 575,000 U.S. vehicles were covered across CX-5, CX-3, Mazda3 and Mazda5, making it one of the largest Mazda campaigns of the decade. Owners in the salt belt reported failures well before the recall notice arrived, and parts were initially unavailable when the campaign opened in April 2017.

On the 2013-2021 Mazda CX-5, on sunroof-equipped CX-5s the front sunroof drain hoses work loose from their drain-tray nipples behind the A-pillar trim, or the tubes clog with organic debris. Because nothing visibly leaks at the headliner, water tracks down inside the pillar and body cavity and pools under the carpet - most often in the rear passenger footwell, the lowest point of the floor pan - so owners discover the problem as a soaked carpet or a persistent musty smell long after the leak started. Sustained wetting under the carpet corrodes floor-mounted connectors and modules and drives mildew growth. The failure is reported across both KE and KF generations, from 2012-2013 cars through 2018 and later.

On the 2013-2019 Mazda CX-5, aC compressor fails due to leaky seals, inadequate lubrication, or stress from system clogs/moisture. Common failure point for aging CX-5s, particularly in hot climates.

On the 2013-2021 Mazda CX-5, the CX-5's Smart City Brake Support uses a laser/infrared sensor behind the windshield glass on early cars, plus a grille-mounted radar and forward camera on later i-ACTIVSENSE builds. Two distinct failure patterns are documented. First, repeated 'Smart City Brake Support malfunction' warnings appearing across all conditions - clear days, rain, snow, city and highway - which Mazda technicians attributed to excessive heat affecting the sensor unit, with owners told no fix was available at the time. Second, phantom braking: the system intervening hard at highway speed with no vehicle or obstacle ahead, described by reviewers as overzealous and by owners as intervening too early and too aggressively. Toll transponders mounted near the sensor and a dirty grille emblem covering the radar are documented triggers of both false faults and false interventions.

On the 2013-2022 Mazda CX-5, the six-speed FW6A-EL automatic in the CX-5 locks its torque converter clutch very early and holds it locked across a wide range to chase fuel economy. That aggressive lock-up strategy wears the lock-up clutch lining, and the resulting iron powder contaminates the ATF. Owners report a distinct shudder or judder - like driving over rumble strips - most often felt after an upshift, under light throttle on an incline, or in third gear and above, typically emerging around 80,000 to 100,000 miles. On 2018 and later 2.5L cars with cylinder deactivation, the deactivation event introduces its own driveline vibration that both aggravates and masks the shudder, so the two get confused during diagnosis. Mazda's current dealer-level repair is a torque converter replacement rather than a full transaxle exchange, though earlier cases were resolved with complete transmission replacements under warranty.

On the 2013-2019 Mazda CX-5, cX-5 owners report a speed-dependent whine or hum that rises and falls with road speed but is unaffected by engine speed or gear - the classic signature of a failing gear-set bearing rather than a transmission or tire issue. Two separate sources exist. On the transaxle side, Mazda issued a service bulletin (05-002/19) covering 2013-2016 and certain 2017-2019 vehicles (built before November 1, 2018, excluding the 2.5T) for a whine above roughly 10 mph traced to a damaged internal bearing. On AWD cars, a rear differential bearing failure can cause a low-speed chattering/rattling noise from the rear; Mazda changed the shape of the coupling unit housing on vehicles built from October 1, 2015, which dates the design defect to pre-October-2015 production. Mazda calls the rear differential and transfer case fluid 'lifetime,' and the units hold very small fluid volumes, so heat-degraded fluid accelerates the bearing wear.

On the 2013-2020 Mazda CX-5, cX-5 owners across both generations report windshields that crack with no rock chip or identifiable impact point - cracks that begin at the A-pillar edge or the lower frit band and run across the glass, sometimes appearing overnight or after a temperature swing. The thin, lightweight laminated glass Mazda specifies appears to have little tolerance for body flex and thermal stress. The 2016 model year alone carries 22 documented cracked-windshield complaints, with additional clusters on 2013 and 2018. The financial sting is bigger on 2016.5 and later i-ACTIVSENSE cars, where the windshield-mounted forward sensing camera must be recalibrated after any glass replacement - and if a replacement windshield's Smart City Brake Support sensor bracket is improperly affixed, that itself was the subject of an equipment recall.