Notes
WARNING: DANGER OF POISONING if oil is ingested/absorbed through the
skin!
RISK OF INJURY if oil comes into contact with eyes and skin!
IMPORTANT: Adhere to the utmost cleanliness. Do not allow
IMPORTANT: Risk of injury!
Drain the air spring system before carrying out any work on the air supply unit,
air pipes and air spring struts! Danger of injury if this instruction is not
complied with!
Necessary preliminary tasks
Remove REAR BUMPER TRIM
Detach ventilation line (1) in direction of arrow from air supply unit.
Unclip ventilation line (1) from holders.
Fig. 139: Locating Air Supply
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 and instructions on HANDLING OPTICAL WAVEGUIDES.
Necessary preliminary tasks
Clamp off BATTERY NEGAT
Components and Installation Locations
The following control units act as the interface between the mobile phone and
the vehicle:
ULF-SBX-High Interface box (Only for USB/Audio Interface)
Telematics Control Unit (TCU)
The preconditions under which TCU or TCU and interface box together are
insta