Attachment Bulletin # 910606
Group: 91Number: 06-06
Date: March 15, 2006
Subject:
IP Cluster Display, Missing Information, MMI Functions Limited
Model(s):
A6 Sedan, Avant, A8 See Table
Supersedes T.B. Group 91, number 06-02 dated Feb. 7, 2006 due to updated VIN range.
Condition
Instrument Panel (IP) Cluster does not display information from following systems:
^ Radio
^ CD changer
^ Navigation
^ Telephone
At same time, ALL of the following MMI conditions are present:
^ MMI time display is frozen and differs from IP Cluster time display.
^ MMI not illuminated when lights are switched ON.
^ MMI does not display temperature when selected from climate control.
^ MMI functions cannot be operated using controls of multi-function steering wheel.
Possible Cause:
Data Bus On Board Diagnostic Interface -J533- (Gateway) not transferring CAN bus data to MOST bus and vice-versa.
Therefore, MMI system can't communicate with IP cluster, climate control, and multifunction steering wheel.
Gateways possibly affected:
^ A6: With production date from 5/25/2005 to 7/31/2005.
^ A8: With production date from 5/26/2005 to 7/31/2005.
Tip:
Production date is engraved on Gateway
Production
A6: Optimized Gateway introduced, beginning with VIN 4F 6N066601.
A8: Optimized Gateway introduced, beginning with VIN 4E 6N009501.
Tip:
Production date of 8/1/2005 or higher identifies optimized Gateway
Service
If ALL conditions are met as described and conditions are not sporadic:
- Replace Data Bus On Board Diagnostic Interface -J533-.
Tip:
Ensure replacement Data Bus On Board Interface -J533- has production date of 8/1/2005 or higher.
When procedure applies to vehicles within the New Vehicle Limited Warranty, use the table.