Mercedes-Benz 600 SEL 1993 Owner's Manual page 34

Central Locking System
The entire vehicle may be locked
or unlocked by either using the
master key in the door or trunk
locks, or central locking switch
located in center console. The
central locking system also locks
or unlocks the fuel filler flap.
Note:
If the fuel filler flap cannot be
opened, refer to Fuel Filler Flap,
Manual Release (see Index).
32
Doors
1 Opening - pull handle
2 Unlocking
3 Locking
4 Individual door from inside:
• Push lock button down to
lock.
• Pull lock button up to unlock
Central locking switch
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.