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BMW 330i, 430i, 530i, X3: loose starter wiring can stall

NHTSA campaign 25V202000 · Reported 2025-04-01 · BMW of North America, LLC

critical How serious is it? About this label

Very serious, because it can both stall your engine in traffic and cause a fire; the notice does not tell owners to stop driving or park outside.

What's wrong, in plain English

The electrical connection between the starter-generator and the battery on these 2025 BMWs can come loose. A loose connection can cause the engine to stall while you are driving, which is dangerous in traffic. The same loose connection can also make the wiring overheat, which can start a fire. BMW mailed a warning letter on May 28, 2025, before the repair was ready, and a second letter goes out once it is. Dealers will inspect and replace the starter-generator and positive battery cable as needed.

What you should do

1. Check your VIN at nhtsa.gov/recalls to confirm your BMW is included.
2. Contact your BMW dealer or BMW customer service at 1-800-525-7417 to ask about this recall and whether the remedy is available yet.
3. Watch for the second owner letter and get the free inspection and parts replacement done as soon as it arrives.

Affected vehicles (3)

Who to contact

BMW — official BMW recall lookup

Customer service: 1-800-525-7417

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

The bigger picture

Official notice

Component
ELECTRICAL SYSTEM:STARTER ASSEMBLY
Summary
BMW of North America, LLC (BMW) is recalling certain 2025 330i, 330i xDrive, 530i, 530i xDrive, 4 Series Coupe (430i, 430i xDrive), 4 Series Convertible (430i, 430i xDrive), 4 Series Gran Coupe (430i, 430i xDrive) and X3 30 xDrive vehicles. The electrical connection between the starter-generator and battery may come loose.
Safety risk
A loose starter-generator connection can result in an engine stall, increasing the risk of a crash. In addition, the wiring may overheat, increasing the risk of a fire.
Remedy
Dealers will inspect and replace the starter-generator and positive battery cable as necessary, free of charge. Interim owner letters notifying owners of the safety risk were mailed May 28, 2025. Second letters will be sent once the remedy is available. Owners may contact BMW customer service at 1-800-525-7417.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.