128 Starting-off and Driving
A
behind the vehicle (area A). The interval between the warning signals becomes
Front and rear parking aid*
shorter as the clearance is reduced.
The parking aid provides a warning of obstacles in front and behind
the vehicle.
B
A continuous tone sounds from a distance of approx. 30 cm (area A) - danger area.
From this moment on do not continue driving! If the vehicle is equipped with a
factory-fitted towing device*, the border of the danger area starts - continuous
tone - 5 cm further behind the vehicle. The vehicle can be extended through an
installed detachable towing device.
On vehicles equipped with a factory-fitted radio* or navigation*, the distance to the
obstruction is shown graphically on the display. On vehicles with a factory-fitted
towing device, the rear sensors are deactivated when towing a trailer. The driver is
also informed of the radio* or the navigation* by a graphic display (vehicle towing
a trailer) on the display. The radio* or navigation*, which is factory-fitted, can be set
so that the play function volume decreases when activating the parking aid, see
Owner's Manual radio* or navigation*. This improves the audibility of the parking
aid.
Fig. 150 Activating the
parking aid
Activating
The parking aid is activated when the reverse gear is engaged and the ignition is
turned on or by pressing the button ⇒ fig. 150 - the symbol
lights up in the
button. The activation is confirmed by a brief acknowledgement signal.
Deactivating
The parking aid is deactivated after pressing the button°
⇒ fig. 150 or at a speed
of more than 10 km/h - the symbol in the button is no longer illuminated.
Fig. 151 Parking aid: Detec-
tion range of the front
sensors
WARNING
•
The parking aid is not a substitute for the driver paying proper attention
and it is always the driver's responsibility to take care when reversing the
vehicle or carrying out similar manoeuvres.
The audible parking aid determines the distance between the front or rear bumper
and an obstacle with the aid of ultrasound sensors. The sensors are integrated in the
front and rear bumper. The signal tones for the front parking aid sound higher as
standard than for the rear parking aid. The tones of the parking aid can be adapted
in the menu of the information display* ⇒ page 29.
•
You should therefore satisfy yourself, before reversing, that there is no
small obstacle, such as a rock, thin post, trailer drawbar etc., in front or
behind your vehicle. Such an obstacle might not be within the range
detected by the sensors.
Range of sensors
•
Under certain circumstances, surfaces of certain objects and types of
clothing cannot reflect the signal of the parking aid. Thus, these objects or
The distance warning begins at a distance of about 120°cm from the obstacle in
A
front of the vehicle (area A ⇒ fig. 151) and about 160 cm from the obstacle
English 
