Keys, locks and alarm system › Alarm system 25
✓ The trailer is not equipped with LED tail lights.
Then try to unlock or lock the vehicle using the
sensors on the handle.
If keyless locking does not work, get the help of a
specialist garage.
›
›
If the electrical connection to the trailer is interrup-
ted in a vehicle with an activated alarm system,
warning signals are triggered.
If the vehicle is not unlocked for a longer period
of time, the function can be deactivated automati-
cally.
Disable the alarm before connecting or discon-
necting a trailer.
No key was found when the ignition was switched
on
Settings
illuminates
The following functions of the alarm system can be
deactivated at the same time.
A message that no key was found in the vehi-
cle.
Interior surveillance.
Towing protection.
▶
▶
Insert the key into the vehicle.
›
By deactivating the SAFEFunction will also be
switched off » page 22, Functionality.
Alarm system
Functionality
Deactivation
By double locking within 2 seconds.
▶
The alarm system triggers acoustic and optical sig-
nals in the event of a break-in or towing attempt.
Or:
▶ In Infotainment, in the menu:
item for interior monitoring.
Menu
The alarm system is activated automatically approxi-
mately 30 seconds after the vehicle is locked.
Or:
The alarm system is automatically deactivated after
the vehicle is unlocked.
▶ In Infotainment, in the menu:
Menu item for interior monitoring.
Alarm trigger
The activated alarm system triggers an alarm when
one of the following events occurs.
The deactivated functions are reactivated after un-
locking and locking the vehicle.
Deactivation is to be carried out if the vehicle is,
for example, towed or transported.
Open the engine compartment lid.
Open the boot lid.
Opening the door.
Manipulation of the ignition lock.
Towing the vehicle.
Movement in the vehicle.
▶
▶
▶
▶
▶
▶
▶
Sudden and significant voltage drop in the electri-
cal system.
Unhitch the trailer.
Opening the door unlocked via the lock cylinder.
▶
▶
Switch off the triggered alarm
Unlock the vehicle.
›
Or:
Turn on the ignition.
›
Functional conditions
All windows must be closed for the alarm system to
function correctly.
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
via the trailer socket.
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