Audio System - Surround Setting Malfuntions

MMI Surround setting lost





91 06 25 Nov. 1, 2006, 2013108/1

Condition





The customer complaint is, that the DSP BOSE sound setting does not remain on surround fr. or surround rear.





Instead normal is displayed and the corresponding sound focus is audible.

Technical Background
The unwanted behavior occurs only after a sleep cycle of the MMI system. The sound setting does not change by
itself during a driving cycle.

Production Solution
Software improvement in Model Year 2007

Service
An MMI System - Update must be performed.
Therefore please contact your Technical Field Manager or the Technical Assistance Center.





Warranty

Required Parts and Tools
Not applicable

Additional Information
All part and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Dept. and service manuals for the latest information.