repaired · 2026 Q3
Electrical system: starter assembly
NewRisk. Fire increases the risk of injury.
2021 BMW 330iProblems, recalls & complaints
NHTSA has logged 29 owner complaints about the 2021 BMW 330i, most often about the electrical system. It is covered by 7 safety recalls, and for recall 25V-636 the manufacturer reports only 71% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through July 17, 2026. Updated daily.
Complaints by system
Where the 2021 BMW 330i has problems
29 complaints grouped by the system owners reported.
13Electrical system3 crash/fire/injury
8Engine1 crash/fire/injury
4Air bags1 crash/fire/injury
3Forward collision avoidance1 crash/fire/injury
2Suspension
2Lane departure
1Wheels
1Engine and engine cooling
1Power train
33 other systems1 crash/fire/injury
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Electrical system | 13 | 3 |
| Engine | 8 | 1 |
| Air bags | 4 | 1 |
| Forward collision avoidance | 3 | 1 |
| Suspension | 2 | 0 |
| Lane departure | 2 | 0 |
| Wheels | 1 | 0 |
| Engine and engine cooling | 1 | 1 |
| Power train | 1 | 0 |
| 3 other systems | 3 | 1 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
7 recalls
2021 BMW 330i recalls and how many were fixed
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.
repaired · 2026 Q3
Starter assembly: relay
Park outsideRisk. A short circuit in the starter relay may increase the risk of a fire.
repaired · 2025 Q3
Electrical system: software
Risk. An audible chime that does not properly alert the driver to fasten their seat belt increases the risk of injury in a crash.
repaired · 2025 Q1
Seats
Risk. An improperly welded seat frame may not properly restrain the occupant during a crash, increasing the risk of injury.
Show 3 more recalls
repaired · 2023 Q2
Seat belts
Risk. During a crash, a seat belt retractor that does not function as intended increases the risk of injury.
repaired · 2021 Q3
Front: buckle assembly
Risk. An improperly installed seat belt assembly may not restrain an occupant as expected, increasing the risk of injury.
repaired · 2023 Q1
Sensing system: camera
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.
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.
Best & worst years
2021 vs. every other 330i year
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 330i median. How we score
'99'00'01'02'03'04'05'06'07'08'09'10'11'17'18'19'20'21'22'23'24'25'26
- Avoid
- Caution
- Solid
- Best
- Not rated
In owners' words
What 330i owners report
Recent electrical system complaints filed with NHTSA, shortened. Personal details are removed.
The contact owned a 2021 BMW 330i. The contact received notification of NHTSA Campaign Number: 26V056000 (Electrical System); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The contact…
I phoned BMW today for an update on this recall. After 6 months, Manufacturer still does not have a fix or repair for your recall 25V636000 and no solution date. This is completely unacceptable.
In September of 2025, I was notified twice by BMW via mail that my car is under recall. The NHTSA Recall Number is 25V636000. It is possible for water to contact and enter the engine starter. This could lead to corrosion which could cause a short circuit and ultimately a fire. They told me it would…
Own a 2021 330i?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.