2021 BMW 4 Series recalls & complaints
Source: NHTSA, updated daily. Last checked 2026-10-18. Recalls apply to specific VINs — run your VIN to confirm.
Recalls: check by VIN
Useful for owners
Owner complaints filed with NHTSA
Most complained-about parts: Electrical system (6), Engine (3), Seat belts (3), Unknown Or Other (1), Transmission / drivetrain (1).
Complaints are unverified reports from owners. A pattern (many complaints about the same part) matters more than any single one.
Read recent complaints (8)
04/27/2026 · Engine
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 ci…
04/04/2026 · Engine
The engine Unknown The problem was confirmed by BMW as they sent me a notice. Unknown Unknown
03/16/2026 · Electrical 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.
03/03/2026 · 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…
02/04/2026 · Electrical 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 manuf…
01/08/2026 · Engine
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 insp…
01/02/2026 · Electrical 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 o…
12/22/2025 · Electrical 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 manufac…