Component
ELECTRICAL SYSTEM:12V/24V/48V BATTERY
Manufacturer
BMW of North America, LLC
What Happened
The 48-volt battery in your vehicle is a specialized battery that helps power some of the car's systems. In some 2021 BMW models, the connection between this battery and the starter-generator might not have been assembled correctly, which can cause problems.
Risk if Unfixed
If this connection isn't fixed, the electrical resistance could get too high, and that could cause a fire. A fire in your vehicle is a serious risk, especially since it could happen while you're driving or parked.
Free Fix
Your BMW dealer will inspect the connection and replace it if necessary, all for free. You'll get a notification letter around April 12, and you should schedule the repair as soon as you can.
Show original NHTSA language
Original — What Happened
BMW of North America, LLC (BMW) is recalling certain 2021 M340i xDrive, M440i xDrive Coupe, 530i, 530i xDrive, 540i, 540i xDrive, 740Li, 740Li xDrive, 840i Gran Coupe, 840i xDrive Gran Coupe, X5 sDrive40i, X5 xDrive40i, X6 sDrive40i, X6 xDrive40i, and X7 xDrive40i vehicles. The connection between the 48-Volt battery and the starter-generator may not have been assembled properly, which can cause increased electrical resistance at the connections.
Original — Risk if Unfixed
Increased electrical resistance can increase the risk of a fire.
Original — Remedy
BMW will notify owners, and dealers will inspect the connection between the 48-Volt battery and the starter-generator assembly, replacing it if necessary, free of charge. The recall is expected to begin April 12, 2021. Owners may contact BMW customer service at 1-800-525-7417.
View full recall details →
Repairs are free at any authorized dealer. Find a dealer →