Anti-Theft Alarm System - Mercedes-Benz 1985 380SE Owner's Manual

Anti-Theft Alarm System

The anti-theft alarm can be armed or
disarmed with the master key (iden­
tified by red dot) by locking or
unlocking either front door or the
trunk.
Operation
Once the alarm system has been
armed, the vehicle lamps will flash
and the horn will sound intermit­
tently when an unauthorized person
tries to:
• open a door
• open the trunk
• remove the radio
• switch on or bridge the steering
lock
• step on the brake pedal
raise the vehicle, i.e. towing
•
away.
The alarm will last approximately
150 seconds in the form of blinking
exterior lamps. At the same time an
additional horn will sound intermit­
tently for 60 seconds, and repeat for
another 60 seconds after a
30 second pause.
The alarm will stay on even if the
arming element (a door, for
example) is immediately closed.
To avoid setting off the alarm unin­
tentionally, do not arm the alarm
system in the following situations;
e.g.: Auto ferry, auto train, when
hitching/unhitching a trailer, or
heavy loading/unloading. For this
purpose use the supplementary key
and not the master key for locking
the vehicle.
Keys
Special Function
To activate the anti-theft alarm from
the trunk, turn the master key in the
trunk lock completely to the right
and pull it out in this position.
If you want the alarm system to be
armed at the trunk only, turn the
master key in the trunk lock comple­
tely to the right and pull it out in that
position. Then disarm the rest of the
vehicle by unlocking either front
door with the master key. You can
now lock or unlock the doors and
filler flap, as well as start the engine,
in the usual manner using the
supplementary key.
Do not give the master key to an
unauthorized person. We recom­
mend that you carry the flat key
safely with you (e.g. in your wallet)
so that it is always handy, if needed.
This key has the same function as
the master key.
Doors