System limits

PDC cannot serve as a substitute for the Check the traffic situation as well
PDC cannot serve as a substitute for the driver's personal judgment of the traffic situation.

Check the traffic situation around the vehicle vehicle with your own eyes. Otherwise, an accident could result from road users or objects located outside of the PDC detection range.

Loud noises from outside and inside the vehicle may prevent you from hearing the PDC's signal tone.◀

Avoid approaching an object quickly. Avoid driving quickly with PDC
Avoid approaching an object quickly.

Avoid driving away quickly while PDC is not yet active.

For technical reasons, the system may otherwise be too late in issuing a warning.◀

Limits of ultrasonic measurement

The detection of objects can reach the physical limits of ultrasonic measurement, for instance:

▷ With tow bars and trailer hitches.
▷ With thin or wedge-shaped objects.
▷ With low objects.
▷ With objects with corners and sharp edges.

Low objects already displayed, e.g., curbs, can move into the blind area of the sensors before or after a continuous tone sounds.

High, protruding objects such as ledges may not be detected.

False warnings

PDC may issue a warning under the following conditions even though there is no obstacle within the detection range:

▷ In heavy rain.
▷ When sensors are very dirty or covered in ice.
▷ When sensors are covered in snow.
▷ On rough road surfaces.
▷ In large buildings with right angles and smooth walls, e.g., in underground garages.

▷ In heavy exhaust.
▷ Due to other ultrasound sources, e.g., sweeping machines, high pressure steam cleaners or neon lights.

    See also:

    What to do if …
    What to do if… > The current position cannot be displayed? The position is in an unrecognized region, in a poor reception area, or the system is in the process of determining the position. Rece ...

    Selecting menu items
    Menu items shown in white can be selected. 1. Turn the controller until the desired menu item is highlighted. 2. Press the controller. Menu items in the Owner's Manual In the Owner's Manual, ...

    Heat image
    The image shows the heat radiated by objects in the field of view of the camera. Warm objects have a light appearance and cold objects, a dark appearance. The ability to detect an object depen ...