Technical Service Bulletin B652316 — 2012 BMW ACTIVEHYBRID 7
ELECTRICAL SYSTEM:SOFTWARE
Bulletin Details
| TSB ID | B652316 |
| Manufacturer | |
| Vehicle | 2012 BMW ACTIVEHYBRID 7 |
| Component | ELECTRICAL SYSTEM:SOFTWARE |
| Communication Date |
Bulletin Summary
?AUDIO VOLUME NOT RESTORED AFTER MSA STOP, ENTRY HEAD UNIT. Volume of audio system (when set to near maximum) is reduced when Auto Start-Stop (MSA) stop occurs and is not restored upon automatic engine restart. This is normal system behavior - serves to protect the head unit, battery drain and avoidance of incremental leaps in the loudness. The loudness is reduced to 2/3 of maximum and is not restored. Note: Air conditioning output is also reduced upon MSA stop and is not restored for similar reasons.
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.