300SL (129.061) L6-3.0L (104.981) (1991)
Retainer and plastic washer on backrest hinge bolt, inside
remove.
Screw on backrest gear, inside and outside
unscrew (2 each, 12 Allen wrench). Observe installation note!
Backrest lock (4) with gear on backrest hinge bolt
actuate release lever on lock and remove.
Clamping pin for gear spindle
remove (diameter 3 mm)
Gear spindle on backrest lock
unscrew and remove gear.
Gear spindle in backrest lock
screw in until clamping pin can just be knocked in.
Clamping pin for gear spindle
install (overall length 30 mm).
Backrest lock with gear
position and fasten to backrest hinge bolt with plastic washer and retainer.
Screws on gear inside and outside
screw in, 35 Nm. Observe installation note!
Control cable (2) on backrest lock
hook in.
Backrest lock
adjust.
Both gear spindles with flexible drive shaft
screw in all the way up against the stop.
Backrest lock
check, both locks must catch simultaneously and completely.
The backrest lock adjustment
can be corrected by turning the gear drive shaft slightly, for this purpose use flexible drive shaft.
Both control cables for the backrest lock
must be adjusted with play of 0 to 1 mm.
Toothed belt
install and tighten, do not turn gear drive shaft.
Both gears with drive shaft
connect and fasten drive shaft with retainer on backrest frame without changing previously adjusted backrest lock.
Backrest lock
check with the two microswitches (S52/1) and (S52/2).
Connect measuring instrument to connection board (X55/3)
and check both microswitches individually.
Backrest
locked:
Nominal value
< 1 Ohm
released:
Nominal value
infinity Ohms
Continue to reinstall in opposite order.
Outer side of seat