2021 BMW 330I Problems

Below Average Complaints

Real NHTSA owner complaints for the 2021 BMW 330I.

20202022
Complaints
40
Crashes
3
Fires
5
Injuries
3
Fatalities
Recalls
7

Worst 2021 BMW 330I Problems

Top 3 most-reported issues with average mileage at failure.

#112 complaints

Electrical Faults

Avg mileage:15,918 mi
Fires:2
#26 complaints

Engine Problems

Avg mileage:33,672 mi
Fires:1
#33 complaints

Airbags

Crash-related:1
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All Problems by Category

Every NHTSA complaint category for the 2021 BMW 330I.

Electrical Faults
12
complaints
Crashes
Fires
2
Avg Miles
15,918
Engine Problems
6
complaints
Crashes
Fires
1
Avg Miles
33,672
Airbags
3
complaints
Crashes
1
Fires
Avg Miles
Forward Collision Avoidance: Warnings
3
complaints
Crashes
1
Fires
Avg Miles
Lane Departure: Warning
2
complaints
Crashes
Fires
Avg Miles
Suspension Failures
2
complaints
Crashes
Fires
Avg Miles
Engine & Cooling
1
complaints
Crashes
Fires
1
Avg Miles
Forward Collision Avoidance: Automatic Emergency Braking
1
complaints
Crashes
Fires
Avg Miles
Transmission / Drivetrain
1
complaints
Crashes
Fires
Avg Miles
Brakes
1
complaints
Crashes
1
Fires
Avg Miles
Body Structure
1
complaints
Crashes
Fires
Avg Miles
Wipers & Visibility
1
complaints
Crashes
Fires
Avg Miles
Wheel Issues
1
complaints
Crashes
Fires
Avg Miles

Search Owner Complaints

Read what owners actually reported to NHTSA for the 2021 BMW 330I. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.

Recalls for 2021 BMW 330I

7 NHTSA recall campaigns affecting ~322,670 vehicles.

26V056000Electrical System:starter Assembly
~87,394 affected

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, 2021-2024 X3 vehicles. Please see the recall report for a complete list of all models. The engine starter may overheat and catch fire due to wear on an internal component.

25V636000Electrical System:starter Assembly:relay
~199,674 affected

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.

23V584000Electrical System:software · Seat Belts
~144 affected

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 driver to fasten their seat belt. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

23V211000Seats
~51 affected

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.

21V554000Seat Belts
~21,537 affected

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 (228i, 228i xDrive, M235i xDrive), M2 Competition Coupe, 330i, 330i xDrive, M340i, M340i xDrive, M3, M3 Competition, 530i, 530i xDrive, 540i, 540i xDrive, MINI Hardtop 2 Door (Cooper, CooperS, JCW), X2 sDrive28i, X2 xDrive28i, X2 M35i, Z4 sDrive30i, Z4 M40i, MINI Hardtop 2 Door (Cooper SE), MINI Convertible (Cooper, Cooper S, JCW), MINI Clubman (Cooper S, Cooper S All4, JCW), MINI Countryman (Cooper, Cooper All4, Cooper S, Cooper S All4, JCW All4), Rolls Royce Ghost, MINI Countryman (Cooper S E All4), Rolls Royce Phantom, Rolls Royce Cullinan, and Toyota Supra vehicles. The passenger seat belt Automatic Locking Retractor (ALR) may deactivate early, before the webbing fully retracts. As such, these assemblies fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

21V298000Seat Belts:front:buckle Assembly
~12 affected

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.

21V096000Back Over Prevention:software · Back Over Prevention: Sensing System: Camera
~13,858 affected

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 Coupe, Convertible and Grand Coupe, 840i, 840i xDrive, M850i xDrive, M8, 2020-2021 530e, 530e xDrive, 330e, 330e xDrive, 745Le, 745Le xDrive, X5 xDrive45e, X3 xDrive30e, X6 sDrive40i, X6 xDrive40i, X6 xDrive50i, X6 M50i, X6M, 530i, 530i xDrive, 540i, 540i xDrive, M550i xDrive, M5, 740i, 740Li, 740Li xDrive, M760i Drive, M760Li xDrive, 750Li xDrive Alpina, Alpina B7 xDrive, and 2021 4 Series Coupe 430i, 430i xDrive, M440i xDrive vehicles. When shifting into Reverse, a small portion of the rearview image may be obscured, or the screen may not illuminate. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."

Other BMW 330I Years

2021 BMW 330I — FAQ

Answers based on real NHTSA complaint and recall data for this specific model year.

Is the 2021 BMW 330I reliable?
Verdict: Below Average Complaints. The 2021 BMW 330I has 40 NHTSA complaints, 3 crash-related, and 7 recall campaigns. The most common issue is Electrical Faults with 12 complaints. Source: NHTSA via VinItel.
What are common problems with the 2021 BMW 330I?
Top reported problems: Electrical Faults (12 complaints, avg 15,918 mi); Engine Problems (6 complaints, avg 33,672 mi); Airbags (3 complaints). Every complaint is filed by an owner with NHTSA — this is raw reported data, not editorial opinion.
At what mileage do problems start on the 2021 BMW 330I?
The weighted average mileage at time of complaint is about 21,836 miles. Some components fail earlier, some later — check the "All Problems by Category" table above for per-issue averages.
How safe is the 2021 BMW 330I?
NHTSA complaints for the 2021 BMW 330I include 3 crash-related reports, 5 fire reports, 3 injuries, and 0 fatalities. These are owner-reported incidents, not official crash-test ratings — a complaint being filed doesn't confirm a defect, but clusters around specific components are worth investigating.
Does the 2021 BMW 330I have any recalls?
Yes — 7 NHTSA recall campaigns affecting an estimated 322,670 vehicles. Recalls are free to fix at the dealer. Always verify by VIN whether the specific car you're looking at has had its recalls addressed.
Should I buy a 2021 BMW 330I?
Fewer complaints than typical for this model. That's a good sign, but every individual car is different — the VIN still tells you what happened to this specific one.

Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.

Wider context: See the full BMW 330I reliability report with year-by-year comparison and generation analysis.

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