Owner's Manual
Page 90
... can indicate objects when they are approached slowly, as needed. 530de418 Online Edition for Part No. 01 41 0 159 867 - © 07/05 BMW AG otherwise the physical circumstances may switch the system on , the PDC system starts to issue the warning too late.< Manual activation Press the button...period before backing up . Signal tones indicate the current distance to the nearest object. Wait this , four ultrasonic sensors in the front and rear bumpers each measure the distance to an object behind or in front of approx. 20 mph/30 km/h, the system switches off and the LED goes...
... can indicate objects when they are approached slowly, as needed. 530de418 Online Edition for Part No. 01 41 0 159 867 - © 07/05 BMW AG otherwise the physical circumstances may switch the system on , the PDC system starts to issue the warning too late.< Manual activation Press the button...period before backing up . Signal tones indicate the current distance to the nearest object. Wait this , four ultrasonic sensors in the front and rear bumpers each measure the distance to an object behind or in front of approx. 20 mph/30 km/h, the system switches off and the LED goes...