REMOVING AND INSTALLING (REPLACING) TELEMATIC COMMUNICATION BOX
IMPORTANT: Read and comply with notes on protection against electrical
damage (ESD
PROTECTION).
Comply with notes and instructions on H
REMOVING AND INSTALLING/REPLACING TELEMATIC CONTROL UNIT (TCU)
(SA633/SA639)
IMPORTANT: Read and comply with notes on protection against electrical
damage (ESD
PROTECTION).
NOTE: Comply with notes an
REMOVING AND INSTALLING (REPLACING) HANDSFREE CHARGING
ELECTRONICS (HIGH)
Operation is described in:
REMOVING AND INSTALLING (REPLACING) HANDSFREE CHARGING ELECTRONICS
(OPTIONAL EXTRA SA644)
Replaceme
Notes
WARNING: Chain tensioner is pre-tensioned.
Release lock pin only in installed state.
Danger of injury!
IMPORTANT: Risk of damage!
The engine must not be cranked when the chain tensioner is removed.
The timing chain may jump.
Necessary preliminary work
Remove TIMING CASE COVER at top left
Input/output Central Locking
Fig. 10: Central Locking Input/Output Diagram
COMPONENTS DESCRIPTION CHART
ID transmitter
Central locking button
Interior trunk button in the A-pillar
Car Access System 4 (CAS 4)
Center-lock button
Central locking, fuel filler flap
Exterior trunk button
Junctio