Do not start the engine with help of starting sprays.
Preparation:
Conform with the following when starting engine with starting cable.
Ensure that jump lead wires are to appropriate cross-section s
IMPORTANT: Only repair those cables which show visible signs of damage. In
the event of
visible damage, make sure there is only one cable repair in effect after the
repair work. If no visible damage
WARNING: Danger of destruction in event of mechanical strain
Do not introduce any additional connections at the battery
negative
terminal.
Do not modify the grounding cable.
The grounding cable
Special tools required:
52 0 050.
Necessary preliminary tasks:
Remove right backrest cover.
Remove head restraint guides.
Remove backrest actuator trim and lock trim.
Lever out welt in marked area.
Fig. 181: Identifying Welt Marked Area
Detaching cover and padding:
Release all retainers
Minimum set: Mechanical tools
Note: For straightening and assembly jobs on vehicle bodies, e.g. fitting
trim panels, removing window
weatherstrips, repairing small-scale dents, removing residual adhesive
materials, measuring gap widths,
levering out trim panel parts
Series: E12, E21, E23, E24, E28