A5 Cabriolet L4-2.0L Turbo (CAEB) (2010)
Accessory Control Display: All Technical Service Bulletins
MMI(R) - System Inoperative Or Malfunctions
91 3G MMI: System inoperative or malfunctions
91 10 66
2024544/1
October 18, 2010
AFFECTED VEHICLES
CONDITION
One of the following conditions is present:
Condition 1
^ The 3G MMI does not work: There is no picture, no sound, and no reaction to pressing the control panel buttons.
^ The 3G MMI main unit, address 5F, cannot be accessed via GFF.
Condition 2
^ The 3G MMI sporadically does not work: There is no picture, no sound, and no reaction to pressing the control panel buttons.
^ After a system reset (3 buttons or by itself) or after not driving for a long time, the 3G MMI system functionality returns.
Condition 3
^ The 3G MMI picture freezes, the sound of the last source continues, and pressing the control panel buttons produces no reaction.
^ After a system reset (3 buttons or by itself) or after not driving for a long time, the 3G MMI system functionality returns.
TECHNICAL BACKGROUND
3G MMI hardware and software-related issues.
PRODUCTION SOLUTION
New 3G MMI hardware and new software (ZUG 0114).
SERVICE
If condition 1 occurs, continue with diagnosis. If necessary, check the 3G MMI software level and if necessary update the software by following the
instructions below.
For conditions 2 and 3, update the MMI software by following the instructions below.
Tip: For successful results, the steps must be performed in this sequence.
1. Check 3G MMI system software version
2. Update software of the 3G MMI system