Problems · NHTSA complaints

2018 BMW M3 problems

Owners filed 9 complaints about the 2018 BMW M3 with NHTSA between Apr 2019 and Aug 2026. The most-cited component is fuel/propulsion system (6).

Complaints
9
Filed with NHTSA
Crashes
0
Reported by owners
Fires
1
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Fuel/propulsion system6
  2. Engine2
  3. Electrical system1
  4. Power train1
  5. Other / unknown2

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Oct 30, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20192
20200
20210
20220
20234
20242
20250
20261

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Fuel/propulsion system

6 reports
“- Fuel tank started slowly leaking fuel after filling tank up to full, only discovered after driving back home and noticing a strong smell of fuel. Repair records are with BMW of Sherman Oaks, CA. - Leaking fuel caused my garage to fill with strong odor of fuel which is unsafe as well as posing an extremely dangerous fire hazard with the exposed fuel leaking to the ground.\ - BMW Dealership inspected, verified no foul play and repaired the faulty part. - A CEL was displayed after which I shortly made a service appointment at BMW. It wasn't until filling the tank to full that I noticed the issue. As myself and others suspect, the leak could be due to the material that was used to construct the fuel tank, which is a plastic welding. My car only had ~21,000 before experiencing this issue and the replacement tank is of the same exact kind, so I expect this issue was not remediated by BMW and will probably experience this again.”
Owner complaint to NHTSAFiled Aug 16, 2024Fuel/propulsion systemODI 11608984

Engine

2 reports1 fire
“While driving, suddenly, with no warning smoke came from under the hood. I got off the road and turned off car immediately. Luckily, since I did turn off the car so quickly, it did not burst into flames but did create a fire within the engine. I have video of fire damage and BMW quote on repair stating fire damage. As in the past with BMW, there is a documented history of PCV-heater fires. NHTSA Recall 22V-119 states the BMW PCV valve heaters can short circuit, overheat and cause a fire.”
Owner complaint to NHTSAFiled Aug 24, 2026Electrical system, EngineFire reportedODI 11759039

Electrical system

1 report1 fire

Power train

1 report
“CRANK HUB WILL BE PRONE TO SPIN AND THEREFORE WILL DESTROY ENGINE WHICH WILL REQUIRE A FULL ENGINE REPLACEMENT. *TR”
Owner complaint to NHTSAFiled Dec 18, 2019Power train, EngineODI 11289976
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 30, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.