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Service bulletins for the 2012 BMW Z4

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

141 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: 12-volt battery are shown. Show all

Bulletins, newest first
6520122018-11-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. RAD2plus: Radio Causes Battery Drain. The vehicle's battery state of charge is very low after the vehicle was parked for a longer period of time (e.g., overnight). The RAD2+ radio doesn't allow the vehicle to enter full sleep mode, and causes a current draw from the battery with ignition off.
B6525162018-11-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. USB CABLE: BATTERY DISCHARGE/AUDIO FAILURE/RADIO RECEPTION. No sound from the radio, telephone, gong signal and or PDC. Poor radio reception and failure of the telematics systems. Possible Check Control system message: o Battery discharge when engine off. o Caution, no acoustic warning signals. Non BMW approved (third-party supplier) USB cable plugged into the USB port.
SIB-61-13-052013-05-01. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. BMW: BATTERY HAS AN INCREASED DEMAND DUE TO DEVELOPEMENTAL PROCESS OF THE ELECTRICAL SYSTEM. THIS IS CAUSING THE BATTER TO NEED TO UNDERGO AN ENERGY DIAGNOSIS. *KB

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.