Fuel injector failed without warning. A lot of fuel leaked into the engine destroying a spark plug in one cylinder and ultimately ruining the catalytic converter when fuel got into it. Independent mechanic and Mazda dealership diagnosed. Car cannot be driven.
Engine & cooling
2018 Mazda CX-3 Engine problems
Owners have filed 2 complaints about the 2018 Mazda CX-3's engine & cooling with NHTSA - 20% of all its complaints, most recently on May 8, 2026. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.
- Complaints
- 2
- Recalls
- 0
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
Engine complaints
The contact owns a 2018 Mazda CX-3. The contact stated that while driving, the vehicle was moving from left to right. The contact stated that the brakes were making an abnormal scraping sound. There was an abnormal sound coming from the engine. The local dealer was not contacted. There were no warning lights illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was unknown.
Mazda CX-3 engine complaints by year
CX-3 engine problems, every yearSource: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data