2020 BMW 3 Series problems and complaints
Owners have filed 53 complaints with NHTSA about the 2020 BMW 3 Series. The most-reported areas: Electrical System (20), Engine (19), Unknown Or Other (7).
Key takeaways
- 53 owner complaints on file with NHTSA.
- 4 involve a crash, 2 a fire, 4 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Electrical System | 20 | 38% |
| Engine | 19 | 36% |
| Unknown Or Other | 7 | 13% |
| Air Bags | 5 | 9% |
| Lane Departure | 3 | 6% |
| Forward Collision Avoidance | 2 | 4% |
| Structure | 2 | 4% |
| Visibility/Wiper | 2 | 4% |
| Visibility | 2 | 4% |
| Power Train | 1 | 2% |
| Steering | 1 | 2% |
| Engine And Engine Cooling | 1 | 2% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2020 BMW 3 Series 4 DR RWD | Not rated | Not rated | Not rated | Not rated |
| 2020 BMW 3 Series 4 DR AWD | Not rated | Not rated | Not rated | Not rated |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Electrical System,lane Departure,forward Collision Avoidance - filed 2026-09-29
Several months ago, my digital cluster on my 2020 330i blacked out briefly and came back on. The other day, after temporarily disconnecting the batter and correctly reconnecting, the digital cluster and driver assist items all failed. Because of this failure, I no longer have access to my speedometer, engine temperat...
Power Train,engine - filed 2026-08-21
The left hydraulic engine motor mount (P/N 22117581621) completely collapsed and failed at 6 years and only 24,811 miles. The right mount was also replaced at the same time (P/N 22117581622). The failure allows unsafe, excessive engine movement and shifting under rotational torque loads. This shifting creates an immedi...
Electrical System - filed 2026-06-11
The contact owns a 2020 BMW 330i. The contact stated that upon starting the vehicle, the starter made an abnormal, grinding metal-like sound. The vehicle was taken to the dealer, who diagnosed that the starter had failed. The starter was replaced under NHTSA Campaign Number: 26V056000 (Electrical System); however, the ...
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More for the 2020 BMW 3 Series
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.