Total Complaints
35 filings
BMW 330I · model year
35 NHTSA complaints, 3 crash reports, and 7 active recalls for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2021BMW330I carries 35 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 3 crashes, 5 fires, 3 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2021 330I is electrical system with 8 filings, followed by engine (5) and unknown or other (5). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 7 active recall campaigns, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.
NHTSA currently has 34 investigation files overlapping the 2021 330I. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
35 filings
Crashes Reported
3 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| ELECTRICAL SYSTEM | 8 |
| ENGINE | 5 |
| UNKNOWN OR OTHER | 5 |
| AIR BAGS | 3 |
| FORWARD COLLISION AVOIDANCE: WARNINGS | 3 |
| LANE DEPARTURE: WARNING | 2 |
| SUSPENSION | 2 |
| STRUCTURE:BODY | 1 |
| POWER TRAIN | 1 |
| FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING | 1 |
| VISIBILITY/WIPER | 1 |
| SERVICE BRAKES | 1 |
| WHEELS | 1 |
| ENGINE AND ENGINE COOLING | 1 |
ELECTRICAL SYSTEM:STARTER ASSEMBLY
BMW of North America, LLC (BMW) is recalling certain 2021-2023 Toyota Supra, 2022-2023 2 Series Coupe, 2021-2024 5 Series (xDrive), 2021-2022 Z4, 2022-2024 4 Series (Gran Coupe), 2021-2024 4 Series (Convertible and xDrive Convertible), 2021-2023 4 Series (Coupe), 2021-2024 3 Series, 2021-2023 X4, 20
SEATS
BMW of North America, LLC (BMW) is recalling certain 2019-2021 330i, 330i xDrive, M340i xDrive, 2020-2021 X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, 2021 X3 xDrive30e, X4 xDrive30i, and X4M vehicles. The seat frame may not have been welded properly to the seat rails.
SEAT BELTS:FRONT:BUCKLE ASSEMBLY
BMW of North America, LLC (BMW) is recalling certain 2021 330i, 330i xDrive, M340i, M3, and 330e xDrive vehicles. The bolt securing the seat belt assembly to the frame was not tightened to specification.
ELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY
BMW of North America, LLC (BMW) is recalling certain 2019-2021 BMW 330i, 2019-2022 BMW Z4, 2020-2022 BMW 530i, X3, X4, Toyota Supra, 2021-2022 BMW 430i, 430i Convertible, and 2022 BMW 230i vehicles. The engine starter relay may corrode, causing the relay to overheat and short circuit.
SEAT BELTS
BMW of North America, LLC (BMW) is recalling certain 2021 2 Series (230i, 230i xDrive, M240i, M240i xDrive), 330e, 330e Xdrive, 4 Series Coupe (430i, 430i xDrive, M440i xDrive) M4 Coupe, M4 Competition Coupe, BMW 4 Series Convertible (430i, M440i), BMW X1 sDrive28i, xDrive28i, 2 Series Gran Coupe (2
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
BMW of North America, LLC (BMW) is recalling certain 2019-2021 X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, X4 xDrive30i, X4 M40i, M550i, X4M, X5 sDrive40i, X5 xDrive40i, X5 xDrive50i, X5M, X5 M50i, X7 xDrive40i, X7 xDrive50i, X7 M50i, Alpina XB7, 330i, 330i xDrive, M340i, M340i xDrive, and 8 Series Co
SEAT BELTS
BMW of North America, LLC (BMW) is recalling certain 2019-2022 330i, 330i xDrive, M340i, 2022 430i Coupe, 2021-2022 430i, M440i Convertible, and 2020-2022 228i xDrive Gran Coupe vehicles. The receiver audio module control unit software may fail to properly generate audible seat belt warnings to the
While driving approximately 70 mph on the highway, my vehicleâs sunroof suddenly and violently shattered without any warning. There was no impact from debris, no vehicle in front of me throwing objects, and no prior damage to the glass. The explosion was extremely loud, resembling a gunshot. The sunroof glass appeared to burst outward and then collapse inward, sending broken glass downward. Thankfully, my vehicle has a canvas sunshade beneath the sunroof, which was closed at the time. The sunshade prevented glass from falling directly onto me and my passenger. Without the shade, we likely would have sustained injuries from falling and flying glass. There were no road hazards, weather anomalies, or external impacts that could have caused this failure. The failure appears to be spontaneous. This incident created a significant safety hazard due to: The sudden loud explosion at highway speed The potential for serious injury from falling glass The risk of loss of vehicle control due
The contact owns a 2021 BMW 330I. The contact received notification of NHTSA Campaign Number: 25V636000 (Electrical System); however, the part to do the recall repair was not yet available. The dealer was contacted and confirmed that parts were not yet available for the recall repair. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.
I have reached out to both the manufacturer and dealership regarding âRecall Campaign No. 25V-636: Engine Starterâ who both do not have a remedy for this recall and do not have a reasonable timeframe of when it will be resolved.
The contact owns a 2021 BMW 330I. The contact stated that several attempts were needed in the morning to start the vehicle. The contact stated that while driving at various speeds, the message "Check Control - Engine Unable to Start" even though the vehicle was running and being driven. Additionally, the contact stated that after stopping at a traffic light, the engine ON/OFF engaged; however, after the traffic light changed and the brake pedal was released, the vehicle failed to restart as designed. The contact stated that several attempts were needed to restart the vehicle. The contact stated that after disengaging the ON/OFF feature, the vehicle failed to turn off when the vehicle was parked. There was no warning light illuminated. The contact had not taken the vehicle to a local dealer or independent mechanic to be diagnosed or repaired. The contact received notification of NHTSA Campaign Number: 25V636000 (Electrical System); however, there was no part available for the repair. Th
The contact owns a 2021 BMW 330I. The contact stated while driving 50 MPH and coming to a stop at a red traffic light, the contact started smelling smoke. There was no warning light illuminated. The contact turned off the vehicle, but the vehicle failed to restart with a message that the vehicle was unable to be restarted displayed. The contact turned on the hazard lights with the vehicle stopped in the middle of the road. The contact then noticed that there was smoke coming from the front end of the vehicle and immediately called 911. The contact stated that while a Metro service employee was attempting to assist the contact in towing the vehicle to the side of the road, the worker noticed that fire had started underneath the vehicle and called the Fire Department. The contact exited the vehicle and noticed that there was fire underneath the front end. The contact stated that the front end of the vehicle then burst into flames. The fire was extinguished by the Fire Department. A Fire
Mileage: 30,000
The contact owns a 2021 BMW 330I. The contact stated while driving 50 MPH and coming to a stop at a red traffic light, the contact started smelling smoke. There was no warning light illuminated. The contact turned off the vehicle, but the vehicle failed to restart with a message that the vehicle was unable to be restarted displayed. The contact turned on the hazard lights with the vehicle stopped in the middle of the road. The contact then noticed that there was smoke coming from the front end of the vehicle and immediately called 911. The contact stated that while a Metro service employee was attempting to assist the contact in towing the vehicle to the side of the road, the worker noticed that fire had started underneath the vehicle and called the Fire Department. The contact exited the vehicle and noticed that there was fire underneath the front end. The contact stated that the front end of the vehicle then burst into flames. The fire was extinguished by the Fire Department. A Fire
Mileage: 30,000
I bought my car in 2023 with 12,000 miles. I currently have 43,000 on it. I donât drive it hard and have always had the maintenance done. I had my rear brakes replaced today at BMW and I was told my engine mounts have failed and need to be fixed asap. Was given a quote of 3000.00. My warranty expired literally 2 months ago. Iâm told itâs dangerous to drive but how does this happen? Everything I read says they should be lasting 60,000-100,000 miles at least.
The front axle support and the right front control arm bearing bracket may be separating, which is causing my vehicle to continually fall out of alignment. This ongoing issue is leading to accelerated tire wear, despite the fact that I have not driven many miles. The manufacturer needs to address the underlying cause, as the dealership continues to recommend alignments without resolving the root problem. I have already paid for two alignments, yet the vehicle consistently goes out of alignment again.
The front axle support and the right front control arm bearing bracket may be separating, which is causing my vehicle to continually fall out of alignment. This ongoing issue is leading to accelerated tire wear, despite the fact that I have not driven many miles. The manufacturer needs to address the underlying cause, as the dealership continues to recommend alignments without resolving the root problem. I have already paid for two alignments, yet the vehicle consistently goes out of alignment again.
The contact owns a 2021 BMW 330I. The contact stated that while the vehicle was parked with the engine running, the engine was shaking abnormally. There was no warning light illuminated. The contact received notification of NHTSA Campaign Number: 25V636000 (Electrical System). The dealer was contacted and confirmed that parts were not yet available. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 33,672.
Mileage: 33,672
The contact owns a 2021 BMW 330I. The contact stated that while the vehicle was parked with the engine running, the engine was shaking abnormally. There was no warning light illuminated. The contact received notification of NHTSA Campaign Number: 25V636000 (Electrical System). The dealer was contacted and confirmed that parts were not yet available. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 33,672.
Mileage: 33,672
The contact's son owns a 2021 BMW 330I. The contact's son received notification of NHTSA Campaign Number: 25V636000 (Electrical System). The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The contact had not experienced a failure.
I just became aware from Consumer Reports about an upcoming recall on BMWs because of a potential fire hazard with the engine starter relays. I own a 2021 BMW 330i which is one of the models listed. I entered my VIN on the NHTSA and BMW websites and both sites indicated my vehicle has no open recalls. According to NHTSA, BMW will start notifying owners on November 14 about the recall. In the Consumer Reports article and several other articles I read about the recall, owners are being directed to park their vehicles outside and away from buildings and other vehicles. Owners are expected to wait until November 14 to see if their specific vehicle is included in the recall. This is not acceptable! NHTSA needs to hold BMW and other manufacturers accountable for informing owners of a recall in a timely manner; a month and a half delay in notification is unacceptable. Owners need to know if their specific vehicle is one of the ones being recalled. I understand the potential delay in schedu
My BMW 330i 2021 caught on fire while I was driving. Smoke came from the hood, and I open the hood and seen the Fire, and I called the Newark NJ Fire Department. see attached photo of the BMW after the fire.
My BMW 330i 2021 caught on fire while I was driving. Smoke came from the hood, and I open the hood and seen the Fire, and I called the Newark NJ Fire Department. see attached photo of the BMW after the fire.
My BMW 330i 2021 caught on fire while I was driving. Smoke came from the hood, and I open the hood and seen the Fire, and I called the Newark NJ Fire Department. see attached photo of the BMW after the fire.
Motor mounts failed on 2021 G20 that only has 52k miles. Vehicle when purchased as CPO had 27k miles and was suppose to be inspected to be certified as CPO. In less than 30k miles from time of purchase it seems these failed early resulting in me driving the vehicle in an unsafe manner until they were scheduled for repair
My car has ver been wrecked or received any damage to any part of it. While driving to work the following warning popped up on screen. RESTRAINT SYSTEM WARNING, functionality of the airbags, seatbelt tensions, belt force limits reduced.
My car has ver been wrecked or received any damage to any part of it. While driving to work the following warning popped up on screen. RESTRAINT SYSTEM WARNING, functionality of the airbags, seatbelt tensions, belt force limits reduced.
Going into a parking spot. Applied brakes, then the car did not brake, then it accelerated hitting a Jeep and finally stopped when the driver side front hit a parking barrier and then the air bags deployed. Sudden unintended acceleration was the cause of this accident. Car was totaled.
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.