Audio System Distorted RAD2+ Sound Output
SI B 65 13 10Audio, Navigation, Monitors, Alarms, SRS
September 2010
Technical Service
SUBJECT
RAD2+: Distorted Audio Output in All Modes
MODEL
E82, E88 *(1 Series)
E89 *(Z4)
E90, E91, E92, E93 *(3 Series)
* Vehicles from 9/2009 to 6/2010 with option 663 (Radio Professional), with or without option 676 (Hi-Fi Loudspeaker System), option 677 (Professional Hi-Fi System), option 688 (Harman-Kardon Surround Sound) and option 752 (Individual Audio System)
SITUATION
In all audio modes (radio, CD, AUX-In, etc.), the audio output is distorted. It is more noticeable with high bass and high audio volume settings.
There may also be an intermittent interference noise coming from the loudspeakers at low audio volume or when the radio is turned off.
CAUSE
Audio settings in the RAD2+ (radio professional).
PROCEDURE
1. Perform a vehicle test using the latest ISTA (Integrated Service Technical Application) diagnostic software.
2. Diagnose any relevant faults that are stored by completing the test plans.
3. Perform and complete the test plan "W6512_WA529 - BMW Professional radio: Distortion of loud music". Please note the Programming Validation Code presented at the end of the test plan. The test plan can be accessed via the following path:
^ Select "Activities\Information Search\Function structure\Body\Audio, Video, Telephone,Navigation\Fault patterns\MalfunctionRAD2" and start search.
4. Reprogram the vehicle using ISTA/P 2.38.2 or higher.
Note that ISTA/P will automatically reprogram and code all programmable control modules that do not have the latest software.
For information on programming and coding with ISTA/P, refer to CenterNet / Aftersales Portal / Service / Workshop Technology / Vehicle Programming.
WARRANTY INFORMATION