At extremely low outside temperatures, it may not be possible to swivel the ball coupling in or out. If this happens, it
is sufficient to place the vehicle in a warmer room, e.g. a garage.
Notes on towing a trailer
Trailer socket
A 13-pin trailer socket makes the electrical connection between the towing vehicle and the trailer. The pin
assignment corresponds with DIN ISO 11446.
If the trailer has a 7-pin plug you will need to use a suitable adapter.
Please contact a correspondingly qualified workshop if you are uncertain whether the electrical connection between
the trailer and the vehicle is correct.
Emergency breakaway cable
Always fasten the trailer's emergency breakaway cable properly to the towing vehicle. Leave enough slack in the
emergency breakaway cable so that the vehicle can still drive around corners. However the emergency breakaway
cable should not drag along the ground while you are driving.
Connection to the anti-theft alarm
The trailer is integrated in the anti-theft system if the following conditions are fulfilled:
—When the vehicle has a factory-fitted anti-theft alarm and a factory-fitted towing bracket.
—When the trailer is electrically connected to the towing vehicle via the trailer socket.
—When the vehicle and trailer electric systems are functional, fault-free and undamaged.
—When the vehicle is locked with the vehicle key and the anti-theft alarm is active.
When the vehicle is locked, the alarm will be triggered as soon as the electrical connection to the trailer is interrupted.
Connection to the anti-theft alarm (trailer with LED tail light clusters)
For technical reasons, trailers with LED tail lights cannot be integrated into the anti-theft alarm system.
When the vehicle is locked, the alarm is not triggered as soon as the electrical connection to the trailer with LED rear
lights is interrupted.
WARNING
Any electrical cables which are not connected properly or are connected incorrectly could cause a power surge to
the trailer. This could lead to faults in the entire vehicle electronics system and could also cause accidents and
serious injuries.
● All work on the electrical system should be carried out by a correspondingly qualified workshop.
● Never connect the trailer’s electrical system directly to the electrical connections of the towing vehicle’s tail light
clusters or to other power sources.
WARNING
Contact between the pins in the trailer socket can lead to short circuits, overloading of the electrical system and
failure of the lighting system, thereby causing accidents and serious injuries.
● Never connect the pins in the trailer socket to one another.
● Have any bent pins repaired by a correspondingly qualified workshop.
NOTICE
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