Audio System - Audio Intermittently Inoperative
SI B65 02 11
Audio, Navigation, Monitors, Alarms, SRS
December 2011 Technical Service
This Service Information bulletin supersedes SI B65 02 11 dated August 2011.
[NEW] designates changes to this revision SUBJECT
RAD2: Audio Is Intermittently Inoperative
MODEL
E82, E88 (1 Series)
E90, E91, E92, E93 (3 Series)
Vehicles produced between 09/2007 and 09/2009 with option 663 (Radio BMW Professional, RAD2) and option 676 (HIFI Loudspeaker System) SITUATION
Intermittently there is no audio output after vehicle start-up. The radio is working.
^ The AM/FM radio station, CD or AUX is displayed correctly.
^ The backlight is on.
^ All buttons on the radio are working.
Switching the audio mode and/or the radio off/on or performing any other selection will not resume audio functionality. The radio will only operate correctly again after a sleep mode cycle.
CAUSE
Overvoltage spike during vehicle start-up
[NEW] INFORMATION
The corrective measure has been integrated into the latest version of ISTA diagnostics.
[NEW] CORRECTION
Refer to ISTA diagnosis for the required repair procedure. Perform the recommended steps in the test plan B6512_WASRAD2 - RAD2 Fault patterns relevant to this complaint.
[NEW] WARRANTY INFORMATION
Eligible repairs are covered under the terms of the BMW New Vehicle/SAV Limited Warranty. Claim this work with the applicable defect code and labor operations listed in KSD2.
