Mercedes-Benz SL Operator's Manual page 39

When you lock the vehicle, both door lock buttons
should move down. If any one stays up, the respective
door is not properly closed.
You should then unlock the vehicle, open and reclose
this door, and lock the vehicle again. Each individual
door can be locked with door lock button – the driver's
door can only be locked when it is closed.
If the vehicle has previously been locked from the
outside, only the door being opened from the inside will
unlock, and the alarm will come on. The other door, the
trunk, the interior storage compartments, and fuel filler
flap remain locked.
Central locking system
Instruments
Operation
and controls
Instrument
Driving
cluster display
Notes:
In case of a malfunction in the central locking system
the doors can be locked and unlocked individually.
To lock, turn key in driver's door lock to position 3 or
push down lock buttons.
To unlock, turn key in driver's door lock to position 2 or
pull inside door handles.
35
Practical hints Car care
Technical
Index
data