1. Switch off the ignition.
2. Open the driver’s door and close it again.
3. Lock the vehicle.
It may not be possible to lock or unlock the vehicle using Keyless Access if the 12-volt vehicle battery or button cell in the
vehicle key is weak or discharged. The vehicle can be unlocked or locked manually.
If there is no valid vehicle key in the vehicle or if it is not detected, a corresponding display will be shown on the instrument
cluster display. This may occur if the vehicle key is disrupted by another radio signal or is covered by another item such as an
aluminium suitcase.
Depending on the vehicle equipment level, the vehicle may have an anti-theft alarm.
The anti-theft alarm monitors the doors, bonnet and the boot lid.
The anti-theft alarm is automatically activated when the vehicle is locked.
If the vehicle is not opened electronically with a valid vehicle key, the anti-theft alarm is triggered and emits acoustic and visual
warning signals for up to 5 minutes.
When does the system trigger an alarm?
—When a door that was unlocked mechanically with the vehicle key is opened.
—When the bonnet is opened.
—When the boot lid is opened.
—If the ignition is switched on using an invalid key.
—If the 12-volt vehicle battery is disconnected.
—If a bicycle carrier that is connected to the anti-theft alarm system is removed.
—If a trailer that is connected to the anti-theft alarm system is removed.
—If there is movement inside a vehicle with interior monitoring (→ Interior monitoring system and anti-tow alarm).
—If vehicles with anti-tow alarm are lifted or towed (→ Interior monitoring system and anti-tow alarm).
—If vehicles with anti-tow alarm or interior monitoring are transported on a car ferry or by rail (→ Interior monitoring system and anti-
tow alarm).
—If a device is connected to the diagnostic connection when the anti-theft alarm system is active.
Switching off the alarm
1. Unlock the vehicle using the unlocking button
on the vehicle key.
switch on the ignition using a valid vehicle key.
2. On vehicles with Keyless Access locking and starting system: when the vehicle key is within range for unlocking, grip the door
handle .
The anti-theft alarm will not function correctly if the 12-volt vehicle battery is weak or discharged.
If the connection to a trailer connected to the anti-theft alarm system is interrupted, the anti-theft alarm system may be
triggered .
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