Mercedes-Benz 1998 SL 500 Operator's Manual page 33

Trunk
0. Neutral posit/on - push to open
1. Unlocking
2. Locking (detent)
3. 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.
Notes:
In case of a malfunction in the central
locking system the trunk can be locked
and unlocked individually.
If the fuel filler flap cannot be opened,
refer to Fuel Filler Flap, Manual
Release (see Index).
33