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What 26 owners told NHTSA about the 2021 BMW 5 Series Hybrid Sedan Phev
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
3 of 26 complaints match · Engine · clear filters
Jul 10, 2026Transmission & drivetrainElectrical systemEngine
Starter engine failure. Car failed to start multiple times. Major safety hazard that can cause a short circuit, melt wiring harnesses, and spark an engine bay fire posing an immediate threat to life. Problem was inspected and confirmed by a dealer. Multiple waring lamps and messages appeared. Dealer report stated: STARTER MOTOR FAULTY. ENGINE ELECTRICAL SYSTEM CONCERN: C/S: REPEAT START ATTEMPT INTERMITTEN WARNING LIGHTS. Please issue recall for the safety of all drivers.
NHTSA ODI 11749530
Mar 21, 2026Engine
I have a 2021 BMW 530i. VIN [XXX] . I brought my vehicle to Pompano Beach BMW and Coconut Creek BMW in Florida. They said both my motor mounts have collapsed. I have discussed the matter with other experts and mechanics, and been told the failure of motor mounts is a serious safety issue and vehicle defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI 11726067
Jun 16, 2025Engine
The contact owns a 2021 BMW 530I. The contact stated that upon starting the vehicle, the vehicle hesitated. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed with motor mount failure. There was an abnormal pulling sound detected. The vehicle was not repaired. The contact spoke with two experts and was informed that the failure should not have occurred. The manufacturer was made aware of the failure. The failure mileage was approximately 60,000.
NHTSA ODI 11667076
Working with the data? Download all 26 complaints as CSV · fetched from NHTSA July 19, 2026