Technical Service Bulletin B611320 — 2020 BMW 740I
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | B611320 |
| Manufacturer | |
| Vehicle | 2020 BMW 740I |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
SERVICE ACTION - CHECKING THE DUAL STORAGE SYSTEM AND REPLACE IF NECESSARY: In the event of an accident the two-battery Dual Storage System (DSS) is disconnected from the electrical system via an internal relay. In some cases the relay is stuck closed and a fault is set. In these circumstances: A crash shutdown of the DSS does not occur The power distribution box is supplied with power until the DSS is fully discharged
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2020 BMW 740I
InVehicle-InApp-Comm
ENGINE
B660325
STRUCTURE:BODY
B520320
SEATS:FRONT ASSEMBLY:HEAD RESTRAINT
B650520
ELECTRICAL SYSTEM:SOFTWARE