System limits

well 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 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 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:

    Speed limit
    Display of a speed limit which, when reached, should cause a warning to be issued. Renewed warning if the vehicle speed drops below the set speed limit once by at least 3 mph/ 5 km/h. Displayi ...

    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 ...

    USB audio interface/mobile phone audio interface
    At a glance It is possible to connect external audio devices. They can be operated via iDrive. The sound is output on the vehicle loudspeakers. Connectors for external devices ▷ Connection ...