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Theft protection systems
3. Then activate the alarm system with
button (1) on the ignition key or
hand-held transmitter. The cargo
space detection has now been
switched off. It is now possible to
stay in the cargo space while
retaining the other detection
options.
To protect the cargo space again, switch off the alarm system and switch it on again.
NOTE: The 'Alarm cargo space detection off' switch is spring-loaded and
returns to the original position. Deactivating and activating the alarm system
therefore reactivates the cargo space detection.
2.3.5 Loss of the ignition key
After replacing it, the lost ignition key can be rendered unusable by erasing the
code from the central door locking memory.
Without the ignition key, the alarm system cannot be switched off.
2.3.6 System does not respond to the ignition key buttons
If the system does not respond to the ignition key buttons, the following tips may
provide a solution:
1. Check whether the battery of the ignition key still works. This is indicated by whether
or not the LED on the ignition key lights up.
2. A strong radio transmitter in the area may affect the range of the transmitter in the
ignition key. Operate the ignition key buttons as close as possible to the electronic
control unit. The electronic control unit is located at the front of the vehicle, on the
co-driver side.
3. If the system does not respond to the transmitter, switch off the alarm system by
opening the vehicle with the key and switching on the ignition. The alarm system
cannot be activated with the ignition key.
2.3.7 Replacing the battery in the ignition key/hand-held
transmitter
To remove the battery cover, first lift it on the side of the 'doors locked' button.
D001668
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DW63246305.book Page 41 Friday, March 22, 2019 4:54 PM
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