Starting-off and Driving115
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Parking aid*
The parking aid provides a warning of obstacles behind 
the vehicle.
The audible parking aid determines the distance between the rear bumper 
and an obstacle located behind the vehicle with the aid of ultrasound 
sensors. The sensors are integrated in the rear bumper.
Range of sensors
The clearance warning begins at a distance of about 160 cm from the 
obstacle (area   ⇒fig. 103 ). The interval between the warning signals 
becomes shorter as the clearance is reduced.
A continuous tone sounds from a clearance of just 30 cm (Bereich  ) - 
danger area.  You should not reverse any further after this signal 
sounds! Activating
The parking aid is activated automatically when 
reverse gear is engaged 
and the ignition is turned on. This is confirmed by a brief acknowledge-
ment signal.
Deactivating
The parking aid is deactivated by removing the reverse gear.
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 parking the vehicle or carrying out similar manoeuvres.
•You should therefore satisfy yourself, before reversing, that 
there is no small obstacle, such as a rock, thin post, trailer drawbar 
etc., behind your vehicle. Such an  obstacle might not be within the 
range detected by the sensors.
Note
•The parking aid does not operate if you are towing a trailer (applies to 
models which feature a factory-fitted towing device*).
•A system fault is indicated if a warning signal sounds for about 5 
seconds after switching the ignition on and engaging reverse gear and 
there is no obstacle close to your vehicle. Have the fault rectified by a 
specialist workshop.
•The sensors must be kept clean and free of ice to enable the parking 
aid to operate properly.
•If the parking aid is activated and the selector lever of the automatic 
gearbox is in the position  , warning signal indicates interruption (vehicle 
can no longer move).
Fig. 103  Parking aid: 
Range of sensors
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NKO 20 A05.book  Page 115  Wednesday, June 21, 2006  1:42 PM