84 11 627 Removing And Installing/Replacing Telematic Control Unit (TCU) (Option SA633/SA638/SA639/SA664)
- Carry out PROGRAMMING/CODING
- If necessary, carry out coupling procedure
Replacement with option SA638/SA664:
- Carry out PROGRAMMING/CODING
- Via Diagnosis and Information System (DIS):
- Service functions
- Start subsequent assessment
Replacement with option SA633/SA639:
- Remove sticker (Bluetooth passkey) from front of TCU and stick to Service Booklet insert
Replacement with option SA633/SA638/SA639/SA664:
Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DAMAGE (ESD PROTECTION)
Necessary preliminary tasks:
- Disconnect battery negative lead
- Remove and install LEFT LUGGAGE COMPARTMENT WHEEL ARCH TRIM .
Disconnect plug connection (1, 2).
Release screws (3) and remove TCU (4).
Installation:
Note colour coding of antenna plugs.
Replace 54-pin plug housing with a new one.
Raise lock (1) on housing (2).
Push both contact carriers (3) from rear out of housing.
Replacement with option SA633 or SA639/SA664 (build date 03/2005-09/2006):
Connect adapter leads (1) between main wiring harness (2) and TCU (3).
Resecure TCU (3).
Installation:
Secure protruding lead parts with suitable adhesive tape in order to prevent rattling noises.