Is the 2018 Mazda CX-5 a bad year?
355 owner complaints to NHTSA. Engine complaints: 185, 12× a quiet CX-5 year.
Keep it, but watch the engine
The engine draws 12× the complaints of a quiet CX-5 year, spread over 5k–76k miles, so there's no single mileage to plan around.
The verdict moves with mileage: the same car reads differently at 30,000 and at 150,000 miles.
What 2018 CX-5 owners report, by mileage
Each system owners named in five or more complaints, with the mileage range where the middle half of those complaints were filed. Read at 28,000 miles.
| SYSTEM | COMPLAINTS | MIDDLE HALF FILED AT | TYPICAL US REPAIR BILLS |
|---|---|---|---|
| EngineSTANDS OUT | 185 (52%) | 5k–76k miles · around this mileage | Valve cover gasket replacement $110–$500 · Timing chain replacement $1,000–$4,000 |
| Fuel system | 39 (11%) | 17k–52k miles · around this mileage | Fuel pump replacement $220–$1,500 · Fuel injector replacement (one injector) $300–$1,200 |
| Brakes | 33 (9%) | 2k–11k miles · mostly behind | — |
| Body structure | 12 (3%) | 3k–19k miles · mostly behind | — |
| Transmission and drivetrain | 42 (12%) | too few with a mileage | — |
| Electrical system | 30 (8%) | too few with a mileage | — |
| Collision avoidance | 13 (4%) | too few with a mileage | — |
| Speed control | 13 (4%) | too few with a mileage | — |
| Air bags | 9 (3%) | too few with a mileage | — |
| Visibility and wipers | 6 (2%) | too few with a mileage | — |
| Exterior lighting | 5 (1%) | too few with a mileage | — |
| Lane assist | 5 (1%) | too few with a mileage | — |
Bills are typical US ranges from the sources named in the tool (J.D. Power, Kelley Blue Book, CarParts.com and others), printed only for systems that stand out or sit at or ahead of 28,000 miles. Not a quote.
What owners reported alongside their complaints
Of 355 complaints: 19 mention a crash · 1 mentions a fire · 6 report an injury · 16 say the car was towed.
51 complaints were filed in the last 12 months, the newest in Nov 2026.
Counts of what owners wrote in their complaints, not verified by anyone.
In owners' own words
I was driving on the highway and it was raining. I lost control of the vehicle, the steering wheel was spinning uncontrollably.
2018 Mazda CX-5 grand touring. Alternator/ac serpentine belt tensioner leaks oil (Its hydraulic) and if fails could cause belt to come off without warning and leave you stranded.
2018 Mazda CX-5 when I check the oil it is extremely over full and strong odor of gas when the dipstick is pulled out to be wiped off.
Unedited excerpts from complaints filed with NHTSA, chosen by mileage (nearest 28,000 miles), not by content. Unverified.
Recalls for the 2018 Mazda CX-5: 3
The impeller inside the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail. Fuel pump failure may cause an engine stall, increasing the risk of a crash.
A software error in the powertrain control module (PCM) may cause the engine to stall. An unexpected stall increases the risk of a crash.
In the event of a side impact or rollover crash, the side curtain air bags may not properly unfold during deployment. If the air bags do not deploy properly in a crash, it can increase the risk of injury.
A recall may cover only some cars of a model year; the campaign size counts every model and year it lists. Enter your VIN at nhtsa.gov/recalls: dealers fix open recalls free.
Service bulletins from Mazda: 479
Repair instructions Mazda sent its dealers for symptoms seen in the shop on the 2018 Mazda CX-5. Ask a dealer or mechanic for a bulletin by its number.
If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...)…
001/26 Warranty and Parts Kit Update INCLUDES: Warranty Extension Program - Special Service Program (SSP) D8 Check Engine Light ON with DTC P0126:00…
Some customers may experience a check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: Engine takes longer…
Some vehicles may display some (or all) of the following symptoms: Check engine light on with DTC P061B Light increase in engine rpms during acceleration…
Neighbouring years
2017 CX-5: 150 complaints, keep it · 2019 CX-5: 273 complaints, keep it, but watch the engine.
Every Mazda CX-5 year
2012 · 2013 · 2014 · 2015 · 2016 · 2017 · 2018 · 2019 · 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026 · All CX-5 years side by side
Other Mazda models: Mazda 626 · Mazda B-Series Truck · Mazda CX-30 · Mazda CX-50 · Mazda CX-7 · Mazda CX-9 · Mazda CX-90 · Mazda MPV · Mazda MX-5 · Mazda Mazda3 · Mazda Mazda5 · Mazda Mazda6 · Mazda Protege · Mazda RX-8 · Mazda Tribute. All makes and models.
Questions
Is the 2018 Mazda CX-5 a bad year?
355 owner complaints to NHTSA. Engine complaints: 185, 12× a quiet CX-5 year. At 28,000 miles the tool says: Keep it, but watch the engine. The engine draws 12× the complaints of a quiet CX-5 year, spread over 5k–76k miles, so there's no single mileage to plan around.
What are the most common problems with the 2018 Mazda CX-5?
By owner complaints to NHTSA: engine (185), fuel system (39), brakes (33), body structure (12), transmission and drivetrain (42). Half of the engine complaints were filed between 5k–76k miles.
How many recalls does the 2018 Mazda CX-5 have?
3 recall campaigns list this model year: Fuel system (NHTSA 21V-875), Transmission and drivetrain (NHTSA 19V-497), Air bags (NHTSA 18V-426). A recall may cover only some cars; check by VIN at nhtsa.gov/recalls.
Method: counts of unverified owner complaints filed with NHTSA, compared only with other years of the same model (sales volumes are unknown, so no failure rate is computed). A system stands out at 40+ complaints and at least twice the model's quiet (lower-quartile) year, or twice the share across every vehicle of that model year. The mileage range is the 25th to 75th percentile of the mileages owners reported. Data received by NHTSA through November 5, 2026. Repair prices are typical US ranges from named sources, not quotes. Not a diagnosis and not financial advice. PulsCar is not affiliated with NHTSA. Check this car at your own mileage.