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:

    AUX-IN port
    At a glance For connecting audio devices, e.g., MP3 player. The sound is output on the vehicle loudspeakers. Recommendation: use medium tone and volume settings on the audio device. The ...

    Selecting a channel
    You can only listen to enabled channels. The selected channel is stored for the remote control currently in use. Via iDrive1.  "Radio" 2.  "Satellite radio" 3.  ...

    Features
    The 2009 X3 starts at $39,700 and comes standard with leatherette upholstery, eight-way power front seats, a panoramic moonroof and rain-sensing windshield wipers. There are four option packages a ...