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Trailer Stability Control
Principle
The system helps you to neutralise a trailer’s
tendency to swing from side to side.
It detects snaking movements and promptly
brakes the vehicle so that road speeds fall to
below the critical range and the vehicle combi‐
nation is stabilised.
If the power socket for the trailer is in use but no
trailer is attached, for example during use of a
bicycle carrier with lights, the system may be‐
come active in extreme driving situations.
Operating requirements
The system is operational when towing a trailer
and when using the trailer socket as of approxi‐
mately 65 km/h, 40 mph.
System limits
▷
The system cannot intervene if the trailer
veers instantly, for example on slippery or
loose road surfaces.
▷
Trailers with a high centre of gravity can tip
over before a swinging motion is detected.
▷
The system is not operational if Dynamic
Stability Control DSC is deactivated or has
failed.
Trailer tow hitch with
electrical swivel-mounted
ball head
General
The swivel-mounted ball head for the trailer tow
hitch is located on the underside of the vehicle.
With the ignition switched off, the system is de‐
activated after a brief period. Therefore, only op‐
erate the system with the ignition switched on.
The LED illuminates green if the system is op‐
erational.
The button for swinging the swivel-mounted
ball head in and out is behind the rear side trim
in the boot.
Swivelling out the ball head
1.
Open the boot.
2.
Step out of the swivelling area of the ball
head behind the vehicle.
3.
Press the button in the boot.
The ball head swivels outwards. The LED in
the button flashes in green.
4.
Wait until the ball head has reached the end
position.
Checking the interlock
Before driving with a trailer or load carrier,
make sure that the ball head is properly locked,
as unstable driving conditions and/or accidents
can otherwise result.
If the ball head is not properly locked, the LED in
the button illuminates in red.◀
Swivelling in the ball head
1.
Uncouple the trailer or load carrier, remove
the fittings for the track-stabilising devices,
pull out the connector for the trailer's power
supply and, if applicable, pull the adapter out
of the socket.
The LED in the button does not illuminate if
the plug or adapter have not yet been pulled.
2.
Press the button in the boot.
Seite 146
Driving hints
Towing a trailer
146
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