Communications Control Module: Service and Repair

84 11 660 Removing And Installing/Replacing Telematics Control Unit (TCU) (option SA633/SA639)







IMPORTANT: Read and comply with notes on protection against electrostatic damage (ESD protection).







NOTE: Comply with notes and instructions on handling optical fibres.







Necessary preliminary tasks:
- Disconnect battery earth cable
- Remove luggage compartment wheel arch trim on left







Disconnect plug connection (1).
Release all nuts.
Remove telematics control unit (2) from holder for telematics control unit (3).

Installation:
Make sure wiring harnesses are correctly routed.







Replacement:
- Carry out vehicle programming/coding
- Via Diagnosis and Information System (DIS):
- Service functions
- Start subsequent assessment