Anti-theft systems
Immobiliser
The immobiliser prevents your vehicle from being started without the correct key.
Activating the immobiliser
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With the key: remove the key from the ignition lock.
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With KEYLESS GO*: press the KEYLESS GO button on the dashboard.
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The engine switches off.
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Deactivating the immobiliser
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With the key: turn the key to position 2 in the ignition lock.
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With KEYLESS GO*: press the KEYLESS GO button on the dashboard twice without depressing the brake.
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The immobiliser is always deactivated when you start the engine.
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ATA* (anti-theft alarm system)
A visual and audible alarm is triggered when the alarm system is primed and you open:
The alarm is not switched off even if you close an open door again.
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 | Indicator lamp |
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To prime: lock the vehicle using the key. On vehicles with KEYLESS GO*, the locking button on the door handle can also be used.
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Indicator lamp flashes. The alarm system is primed after approximately 10 seconds.
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To deactivate: unlock the vehicle using the key. On vehicles with KEYLESS GO*, you can also unlock the vehicle by grasping the door handle.
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Switching off the alarm
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With the key: insert the key into the ignition lock.
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The alarm is switched off.
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or |
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Press the 
or  button on the key.
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The alarm is switched off.
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With KEYLESS GO*: grasp the door handle. The key must be outside the vehicle.
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The alarm is switched off.
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Press the KEYLESS GO* button on the dashboard. The key must be inside the vehicle.
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The alarm is switched off.
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Tow-away protection*
An audible and visual alarm is triggered if the vehicle's angle of inclination is altered while tow-away protection is primed. This occurs if the vehicle is jacked up on one side, for example.
Priming tow-away protection
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Make sure that all the doors and the tailgate are closed.
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Lock the vehicle with the key or, on vehicles with KEYLESS GO*, also using the locking button on the door handle.
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Tow-away protection is primed after approx. 30 seconds.
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Deactivating tow-away protection
Deactivate tow-away protection manually to prevent a false alarm if your vehicle:
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it is being transported
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it is being loaded, e.g. onto a ferry or car transporter
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is being parked on a movable surface, e.g. split-level garages
It is possible to switch off tow-away protection on the on-board computer for the next time the vehicle is locked more. Tow-away protection remains deactivated until you unlock and lock the vehicle again.
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Press  .
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The Tow-away protection off message appears in the multi-function display.
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If you press  , tow-away protection will remain primed.
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Lock the vehicle with the key or, on vehicles with KEYLESS GO*, with the locking button on the door handle.
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Tow-away protection remains deactivated until:
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the vehicle is unlocked again
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a door is opened and closed again
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the vehicle is locked again
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Interior motion sensor*
If the interior motion sensor is primed, a visual and audible alarm is deployed if movement is detected in the vehicle interior while the vehicle is locked. This occurs, for example, if someone breaks the side windows of your vehicle or reaches into the vehicle's interior.
Priming the interior motion sensor
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Make sure that:
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the side windows are closed
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the sliding/tilting sunroof* is closed
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there are no objects, e.g. mascots, hanging on the rear-view mirror or on the grasp handles on the roof trim.
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This will prevent false alarms.
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Make sure that all the doors and the tailgate are closed.
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Lock the vehicle with the key or, on vehicles with KEYLESS GO*, with the locking button on the door handle.
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The interior motion sensor is primed after approximately 40 seconds.
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Deactivating the interior motion sensor
To prevent a false alarm, deactivate the interior motion sensor if you lock your vehicle and
It is possible to deactivate the interior motion sensor using the on-board computer for the next time the vehicle is locked more. The interior motion sensor remains deactivated until you unlock and lock the vehicle again.
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Press .
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The Interior motion sensor off message appears in the multi-function display.
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If you press , the interior motion sensor will remain activated.
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Lock the vehicle with the key or, on vehicles with KEYLESS GO*, with the locking button on the door handle.
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The interior motion sensor remains deactivated until:
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the vehicle is unlocked again
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a door is opened and closed again
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the vehicle is locked again
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