Driveline: driveshaft
NewRisk. An unexpected loss of drive power can increase the risk of a crash.
NHTSA has logged 10 owner complaints about the 2021 BMW 540i, most often about the service brakes. It is covered by 6 safety recalls, and for recall 21V-096 the manufacturer reports only 96% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through November 4, 2026. Updated daily.
10 complaints grouped by the system owners reported.
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Service brakes | 3 | 1 |
| Power train | 3 | 0 |
| Electrical system | 3 | 0 |
| Seat belts | 1 | 0 |
| Steering | 1 | 0 |
| Wheels | 1 | 0 |
| Engine | 1 | 0 |
| Forward collision avoidance | 1 | 1 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
Risk. An unexpected loss of drive power can increase the risk of a crash.
Risk. During a crash, a seat belt retractor that does not function as intended increases the risk of injury.
Risk. If the driver relies on only the rearview camera image, the missing or reduced rearview image view can increase the risk of a crash or injury.
Risk. A broken output shaft can lead to a loss of drive power or a rollaway condition in a parked vehicle (if the parking brake is not engaged), increasing the risk…
Risk. Increased electrical resistance can increase the risk of a fire.
Risk. If the driver relies on only the rearview camera image, the reduced rearview image view can increase the risk of a crash or injury.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with BMW.
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the 540i median. How we score
Federal investigations that included the 2021 BMW 540i, and the recalls they led to.
Recent service brakes complaints filed with NHTSA, shortened. Personal details are removed.
In November 2025 my breaks quit working. I had AAA haul my car to a repair shop. They ran the codes on the car and found that it was related to a recall on 2021 BMW 540i's for the oil vacuum pump assembly, pan and gasket. I then had it towed to BMW and found out that my vin was not in the recall.…
We notice the lose of braking power right after we started the car on 4/30 morning. The car was totally fine before that. took it to the BMW dealer they said the problem is "Vacuum/oil pump failing internally. fault for brake booster pressure switch, no brake boost" I find that there is a recall…
Unintended car acceleration, with complete brake failure. No software warning icons in dash, no collision avoidance or ABS triggered even though car so equipped. Crashed into rear end of stationery vehicle,. [XXX], MN police were called. Incident report # attached. (1st image) Western National…
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.