Audio Sys. - USB Functions Inop. and DTC's DE4E And 9308
SI B65 10 10
Audio, Navigation, Monitors, Alarms, SRS
October 2010
Technical Service
SUBJECT
USB Audio Functions Delayed After Vehicle Start
MODEL
All models
Produced between 01/17/2010 and 03/14/2010 with option 6FL (USB Audio Interface)
SITUATION
Intermittently the USB audio functions (iPod/iPhone, MP3 player) are inoperative for the first 3 minutes after the vehicle is started. Fault codes
DE4E and 9308 are stored in the ULF module.
This behavior happens more often during higher ambient temperatures.
CAUSE
Hardware failure in the ULF (hands-free charge module)
CORRECTION
Perform diagnostics using the latest ISTA version and work through any related test module(s).
Replace the ULF module and program the vehicle.
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.
2010 BMW 135i Convertible (E88) L6-3.0L Turbo (N54) Page 422
