Communications Control Module: Service and Repair

84 11 660 Removing And Installing/replacing Telematic Control Unit (TCU) (option SA633/SA639)







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







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







Necessary preliminary tasks:
- Disconnect battery earth cable
- Remove spare wheel well trim panel at front







Unfasten aerial connectors (1) and disconnect.

Unlock plug connections (2) and disconnect.

Installation:
Observe colour coding of aerial connectors (1).







Release nuts (1) on left/right.

Remove TCU (2).







Replacement:
- Carry out vehicle programming/coding