Keys, locks and alarm system › Alarm system 25
Lock
Alarm system
Functionality
Touch the sensor.
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After locking, it is not
possible to unlock
within 2 seconds by
touching the door han-
dle. This can be used to
check whether the ve-
hicle is locked.
The alarm system triggers audible and visual signals
during a break-in or towing attempt.
The alarm system is activated automatically approxi-
mately 30 seconds after the vehicle is locked.
The alarm system is automatically deactivated after
the vehicle is unlocked.
Alarm triggering
The activated alarm system triggers an alarm when
one of the following events occurs:
Unlocking the boot lid
Press the handle of the boot lid.
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Opening the bonnet
Opening the boot lid
Opening the door
Manipulation of the ignition lock
Towing the vehicle
Movement in the vehicle
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Protection against inadvertently locking the key in
the vehicle
If the key is locked inside the vehicle, the vehicle will
unlock itself automatically. If no door is opened with-
in 45 seconds, the vehicle automatically locks again.
If the key is locked in the boot, the boot lid will auto-
matically unlock itself.
Sudden and significant voltage drop of the electri-
cal system
Uncoupling the trailer
Opening the door unlocked via the lock cylinder
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Settings
Deactivate keyless locking
Switching off the triggered alarm
Unlock the vehicle.
Lock the vehicle with the button on the key.
Within 5 s, touch the sensor on the door handle
with your finger.
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Or:
Turn on the ignition.
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Deactivation is confirmed by a single flash of the
direction indicators.
To check the deactivation, wait at least 10 seconds
and then pull the door handle.
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Operating conditions
For the correct functioning of the alarm system, all
windows must be closed.
The door must remain locked.
Keyless locking is automatically activated once again
after the vehicle is unlocked.
A trailer is integrated into the alarm system under
the following conditions:
✓ The vehicle is factory-fitted with a towing device.
✓ The trailer is electrically connected to the vehicle
Troubleshooting
The vehicle cannot be unlocked or locked using
the sensors on the handle
via the trailer socket.
✓ The trailer is not equipped with LED taillights.
Lock or unlock the vehicle with the button on the
key.
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If the electrical connection to the trailer is interrup-
ted on a vehicle with an activated alarm system,
warning signals are triggered.
Then try to unlock or lock the vehicle using the
sensors on the handle.
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Disable the alarm before connecting or discon-
necting a trailer.
If keyless locking does not work, seek the help of a
specialist garage.
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If the vehicle is not unlocked for a longer period
of time, the function can be deactivated automati-
cally.
Settings
The following functions of the alarm system can be
deactivated at the same time:
When the ignition was switched on, no key was
found
Interior monitoring
Towing protection
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▶
illuminates
Message that no key was found in the vehicle
Insert the key into the vehicle.
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English 
