2.37
DRIVER CORRECTION DEVICES AND AIDS (10/12)
Driver assistance with a
trailer
Depending on the vehicle, this system
helps to maintain control over the vehi-
cle while using a trailer.
It detects shaking caused by towing a
trailer under certain driving conditions.
Operating conditions
– the towbar must be approved by an authorised dealer;
– the wiring must be approved by an authorised dealer;
– the towbar must be connected to the vehicle.
If the towbar wiring is
plugged in but no trailer
is attached (bicycle car-
rier, luggage carrier with
lighting, etc.), the function may act
under certain rutted road conditions.
Risk of vehicle deceleration.
Operating principle
The function stabilises the vehicle by:
– asymmetric braking of the front wheels to reduce shaking caused by
the trailer;
– braking of all four wheels and limita- tion on engine torque to reduce the
vehicle speed until the shaking has
stopped.
Warning light
flashes on the in-
strument panel to inform the driver.
