2021 BMW 430I problems, complaints & recalls
Updated from NHTSA data · How we count
Owners have filed 15 complaints with NHTSA about the 2021 BMW 430I, most often about electrical system. There are 6 recalls for this model year.
- Complaints
- 15
- Recalls
- 6
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Median mileage
- 13,000 mi at time of problem
Safety warning: at least one recall for this vehicle tells owners to park outside until it is repaired. Check your VIN at nhtsa.gov/recalls.
Key facts
- Electrical System is the most-reported problem area, named in 6 of 15 complaints (40%).
- Seats & Seat Belts (3) and engine (3) follow.
- Half of the complaints that list mileage happened before 13,000 mi.
- The 2021 BMW 430I has 6 recalls on file.
- It ranks 5th of 10 BMW 430I model years by our severity-weighted complaint score (1st = worst).
2021 BMW 430I problems by category
- Electrical System6 complaints
- Seats & Seat Belts3 complaints
- Engine3 complaints
- Wheels & Tires1 complaints
- Other / Unknown1 complaints
- Transmission & Drivetrain1 complaints
A complaint can mention more than one problem area, so categories add up to more than the total.
Most-reported components
| Component (as filed with NHTSA) | Complaints |
|---|---|
| Electrical system | 6 |
| Engine | 3 |
| Seat belts | 3 |
| Power train:driveline:differential unit | 1 |
| Tires:sidewall | 1 |
| Unknown or other | 1 |
When problems happen (mileage)
2021 BMW 430I recalls (6)
- 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, 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.
Risk: Fire increases the risk of injury.
Remedy: Dealers will replace the engine starter, free of charge. Owner notification letters were mailed July 21, 2026. Owners may contact BMW customer service at 1-800-525-7417 or Toyota's customer service at 1-800-331-4331. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning March 24, 2026.
- 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.
Risk: A short circuit in the starter relay may increase the risk of a fire.
Remedy: Owners are advised to park their vehicles outside and away from structures until the remedy is complete. Dealers will replace the engine starter, free of charge. Owner notification letters were mailed February 6, 2026. Owners may contact BMW customer service at 1-800-525-7417. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov November 14, 2025.
- ELECTRICAL SYSTEM:SOFTWARE · 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 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."
Risk: An audible chime that does not properly alert the driver to fasten their seat belt increases the risk of injury in a crash.
Remedy: Dealers will update the receiver audio module software, free of charge. Owner notification letters were mailed October 12, 2023. Owners may contact BMW customer service at 1-800-525-7417.
- 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 (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."
Risk: During a crash, a seat belt retractor that does not function as intended increases the risk of injury.
Remedy: Dealers will inspect the seat belt retractors (including the seat belts) and, if necessary, replace the retractors, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact BMW customer service at 1-800-525-7417; 1-866-825-1525 (MINI); 1-877-877-3735 (Rolls Royce); and 1-888-270-9371 (Toyota).
- AIR BAGS:SIDE/WINDOW:HEAD · AIR BAGS:SIDE/WINDOW:THORAX
BMW of North America, LLC (BMW) is recalling certain 2021 430i and M440i 4 Series Convertible vehicles. In certain side-impact crashes, the head-thorax air bag may not deploy as intended.
Risk: An air bag that deploys incorrectly can increase the risk of injury in a crash.
Remedy: Dealers will update the software, at no charge. All affected vehicles are still in dealer inventory, and therefore no owner letters will be mailed. The recall began March 9, 2021. Owners may contact BMW customer service at 1-800-525-7417.
- BACK OVER PREVENTION: SENSING SYSTEM: CAMERA · BACK OVER PREVENTION:SOFTWARE
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."
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.
Remedy: BMW will notify owners, and dealers will inspect the rearview camera software and update it if necessary, free of charge. The recall began April 16, 2021. Owners may contact BMW customer service at 1-800-525-7417.
Recent 2021 BMW 430I complaints
Excerpts of the newest owner complaints, lightly cleaned of personal details. Complaints are unverified owner reports.
- Filed Apr 27, 2026NYEngine
The recall was issued more than 8 months ago but the remedy is still not yet available, which is very concerning as the problem may cause the event of fire even when the vehicle is parked. Issued SEP 23, 2025 Description of Problem It is possible for water to contact and enter the engine starter. This could lead to corrosion which could cause a short circuit. Safety Risk This could increase the risk of a thermal event or fire during driving or even when the vehicle is parked…
NHTSA complaint #11734108 · source - Filed Mar 16, 2026ILElectrical System
I received a recall notice dated 9/23/2025. The recall is listed as URGENT safety issue that could cause a fire. The notice instructs not to drive the car or park in garage. It has been over 6 months now and there is still no fix. I am requesting the manufacture buyback my vehicle.
NHTSA complaint #11724645 · source - Filed Mar 3, 202613,000 miGASeats & Seat Belts
The contact owns a 2021 BMW 430I. The contact stated that the front driver’s side seat belt chest strap was shredded. The contact was concerned that the seat belt would not safely secure the driver in a crash. The contact stated that the shredded seat belt strap might have been caused by the seat belt strap touching the seat belt retractor while pulling the seat belt buckle up. The vehicle was taken to the local dealer who indicated that the seat belt needed to be replaced.…
NHTSA complaint #11721698 · source - Filed Feb 4, 2026MAElectrical System
The contact called for the owner of the 2021 BMW 430I. The owner received notification of NHTSA Campaign Number: 25V636000 (Electrical System); however, the part to do the recall repair was not yet available. The local dealer was not contacted. 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.
NHTSA complaint #11715568 · source - Filed Jan 8, 2026CAEngine
The component that malfunctioned is the engine starter relay, which is subject to an open BMW/NHTSA safety recall (issued September 2025) due to potential corrosion causing overheating, short circuits, and vehicle fire risk. The recall specifically advises parking the vehicle outside and away from structures until repaired. The vehicle is available for inspection upon request.My safety and the safety of my family were put at risk because the dealership (Capitol Nissan in San…
NHTSA complaint #11709689 · source - Filed Jan 2, 2026CAElectrical System
The contact owns a 2021 BMW 430I. The contact received notification of NHTSA Campaign Number: 25V636000 (Electrical System); however, the part to do the recall repair was not yet available. The local dealer was made aware of the issue and confirmed that parts were not yet available. 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.
NHTSA complaint #11708333 · source - Filed Dec 22, 2025PAElectrical System
The contact owns a 2021 BMW 430I. The contact had received a recall letter from the manufacturer for NHTSA Campaign Number: 25V636000 (Electrical System). The contact called the local dealer and was informed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure.
NHTSA complaint #11706487 · source - Filed Nov 28, 2025FLElectrical System
Due to the severity of the current safety recall i am reaching out for BMW to supply a correction/remedy for the starter issue. This issue is causing added anxiety and this being my only reliable transportation is troublesome. If they are unable to fix the issue I am asking that they buy the car back so people can get other vehicles that don't run the risk of spontaneously combusting.
NHTSA complaint #11701950 · source
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Other 2021 BMW models
Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data, as of Oct 11, 2026. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology