Park Distance Control E70: Introduction
Park Distance Control (PDC) is an item of special equipment. Park Distance Control (i.e.: parking aid) assists the driver when he is parking and maneuvering in tight spaces. This means that even small parking spaces can be used. At the same time, parking damage is reduced.
PDC uses ultrasonic sensors to measure the distance to objects within the effective range.
- > E70 (system supplier Valeo)
- > E87, E90, E91, E92, E93 (system supplier Bosch)
- > R56 (system supplier Bosch)
PDC is available in the following versions:
- Option 507: Park Distance Control (PDC), rear
- Option 508: Park Distance Control (PDC), front and rear
The PDC button in the center console switch cluster is only provided with option 508.
Compared to earlier systems, PDC has the following new features:
- Modified ultrasonic sensor with decoupling element on sensor housing
- Increased range for ultrasonic sensor: 2.5 meters front and rear
- Good detection of obstacles while remaining insensitive to echo pulses from the ground
The driver is warned of an object that could cause a collision as follows:
- Acoustic warning via (depends on equipment fitted):
- > E70
- Mid-range loudspeakers with Multimedia Platform (CHAMP), Multi-audio system controller (M-ASK) or Car Communication Computer (CCC)
- > E87, E90, E91, E92, E93
- 2 acoustic generators (1 front, 1 rear) with radio without audio system
- Mid-range loudspeaker with BMW "Professional" radio, multi-audio system controller or Car Communication Computer
- > R56
- 1 acoustic generators (rear) with Radio Wave
- Mid-range loudspeaker with Radio Wave CD, Radio Boost CD or Car Communication Computer
- > E70
- Visual warning by PDC image with multi-audio system controller and Car Communication Computer
The visual warning function in particular enables PDC to provide assistance for drivers who are hard of hearing or have restricted mobility.
The visual warning has additional benefits if the noise level inside the vehicle is very high (e.g. loud music).
PDC is not a substitute for the driver's personal judgement with respect to obstacles.
The ultrasonic sensors also have a "blind spot". In this blind spot, objects can no longer be detected.
The detection of objects can test the physical limits of ultrasonic measurements if the ultrasonic waves are reflected either poorly or not at all (e.g. due to trailer tow bars or narrow objects).
Objects close to the ground can suddenly "disappear", before a continuous tone sounds (e.g. a high kerbstone).
Loud noises outside and inside the vehicle can drown out the PDC signal tone.
It therefore remains the driver's responsibility to watch for obstacles, even in vehicles with PDC.