Mercedes-Benz SL 320 Operator's Manual page 30

When you lock the car, all door lock
buttons should move down. If any one
stays up, the respective door is not
properly closed.
You should then unlock the car, open
and reclose this door, and lock the car
again. Each individual door can be
locked with door lock button - the
driver's door can only be locked when
it is closed.
The doors can only be locked with the
central locking switch, if they are
closed.
The doors cannot be unlocked with the
central locking switch, if car was
previously locked from outside.
When opening a door, the entire car is
unlocked, if it was previously locked
with the central locking switch.
If the car has previously been locked
from the outside, only the door being
opened from the inside will unlock, the
other door, the trunk lid and fuel filler
flap remain locked.
Important!
Do not close a door with the windows
fully closed while the power supply is
interrupted (battery disconnected or
empty). Doing so could damage the
window frame. The power windows
should first be resynchronized.
See Index.
Trunk
1. Neutral position - push to open
2. Unlocking
3. Locking (detent)
4. Separate locking of trunk -
remove key in this position.
When the trunk is separately locked, it
remains locked when unlocking any
door.
To deny any unauthorized person
access to the trunk, lock it separately.
Leave only the valet key with the
vehicle.
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