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A A l l a a r r m m s s y y s s t t e e m m
Alarm system
A
The alarm system monitors the following alarm
B
contacts:
C
– Alarm contacts in doors, tailgate and hood
– Passenger compartment monitoring system:
D
Movement in the interior when the vehicle is
E
locked, e.g. attempted theft by breaking a
window
F
– Inclination sensor: Vehicle incline (e.g., during
G
an attempt to tow the vehicle away)
– Diagnostic socket
H
– Trailer hitch socket
I
If one of these alarm contacts is triggered, the
J
alarm horn sounds for approx. 25 seconds and the
emergency flasher flashes for approx. 300
K
seconds.
L
After a 5 second interval, the acoustic alarm is
triggered again. This cycle is repeated up to ten
M
times (country-dependent).
N
Switching the alarm system on/off
O
e The alarm system is activated after approx. 30
P
seconds when the vehicle is locked.
e The alarm system is deactivated when the ve-
Q
hicle is unlocked.
R
S
Information
T
If you unlock the vehicle with the emergency key in
the door lock, you must switch the ignition on
U
within 15 seconds of opening the door in order to
V
prevent the alarm system from being triggered.
The time it takes to trigger the alarm system dif-
W
fers from country to country.
X
Y
Z
60
Switching off the alarm system
after the alarm has been triggered
e Unlock the vehicle
– or –
e Switch on ignition.
Switching off passenger compart-
ment monitoring system and incli-
nation sensor
> Please see chapter "Central locking" on
page 78.
Alarm system function indication
The locking condition is indicated by the light indi-
cators in the doors flashing at different
frequencies.
Alarm system is activated
The light indicators flash rapidly when the vehicle is
being locked, then flash in normal mode.
The alarm system is activated and the
passenger compartment monitoring
system and inclination sensor are
deactivated
The light indicators flash rapidly while you are
locking the vehicle, go out for 28 seconds and
then flash in normal mode.
Faults in the central locking system and
alarm system.
During locking of the vehicle, the light indicators
flash rapidly, light up continuously for 28 seconds
and then flash in normal mode.
Preventing theft
Before leaving the vehicle, always:
e Close the windows and the Panoramic roof
system. This will also prevent a false alarm by
the passenger compartment monitoring
system.
e Activate the parking lock P and the electric
parking brake.
e Switch ignition off.
e Close the glove compartment.
e Close all storage compartments.
e Remove valuables, car papers, phone and
house keys from the vehicle.
e Close the doors and tailgate.
e Close the hood.
e Lock the vehicle.
Immobilizer
Every vehicle key contains a transponder (elec-
tronic component) with a stored code.
An authorized vehicle key is required in order to
deactivate the immobilizer and start the engine.
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