Mercedes-Benz 300 SE 1989 Owner's Manual page 32

Anti-Theft Alarm System
The anti-theft alarm can be armed or
disarmed with the master key, valet
key or flat key by locking or unlocking
either fron t door or the trunk.
Operation
Once the alarm system has been
armed, the exterior vehicle lamps will
flash and the horn will sound interm it­
tently when someone:
• opens a door
• opens the trunk
• opens the hood
• removes the radio
• sw itches on or bridges the igni­
tion circuit
• steps on the brake pedal.
30
The alarm will last approxim ately
150 seconds in the form of blinking
exterior lamps. A t the same tim e an
additional horn will sound interm it­
tently fo r 60 seconds, pause for
30 seconds, and repeat fo r another
60 seconds.
The alarm will stay on even if the acti­
vating elem ent (a door, fo r example)
is immediately closed.
Note:
If the radio is removed from its
mounting when the anti-theft alarm is
armed the radio will autom atically be
rendered inoperative! (This is indi­
cated by a dashed line across the dis­
play.)
Do not give the master key to an
unauthorized person. We recom m end
that you carry the flat key safely with
you so that it is always handy. This
key has the same function as the
master key.
Adjusting Power Seats, Front
The sw itches are located in each front
door.
Turn key to steering lock position 1
or 2 (with the driver's or fro n t passen­
g e r's d oor opened, the power seats
can also be operated with the key
removed o r in steering lock posi­
tion 0).