2007 BMW X3 Owner's Manual - Page 52
2007 BMW X3 Manual
Page 52 highlights
Technology for comfort, convenience and safety Malfunction The LED in the button flashes and a short continuous tone sounds. PDC is malfunctioning. Switch off PDC. Have the system checked. To prevent this problem, keep the sensors clean and free of ice or snow in order to ensure that they will continue to operate effectively. When using high-pressure washers, do not spray sensors for long periods and keep the sprayer at least 4 in/10 cm away from the sensors. Electronic brake-force distribution The system controls the brake pressure in the rear wheels to ensure a stable braking behavior. Brake assistant When the brake pedal is depressed quickly, this system automatically generates a maximum braking force distribution and thus helps keep the braking distance to a minimum during full braking. This system exploits all of the benefits provided by ABS. As long as you want full braking to continue, do not reduce pressure on the brake. System limits Even with PDC, final responsibility for estimating the distance between the vehicle and any obstructions always remains with the driver. Even when sensors are involved, there is a blind spot in which objects cannot be detected. The system is also subject to the physical limits that apply to all forms of ultrasonic measurement, such as those encountered with tow bars and trailer couplings, or thin and wedge-shaped objects. Low objects already displayed, e.g. curb edges, can come into the blind spot of the sensors before or after a continuous tone sounds. The system may fail to detect higher obstacles such as projections from walls. Loud sources of sound, inside and outside the vehicle, could drown out the PDC signal tone.< DSC Dynamic Stability Control DSC prevents slip at the drive wheels when starting off and accelerating. The system also detects unstable driving conditions, such as a fishtailing of the vehicle's rear end or the sliding of the vehicle on its front wheels. In these circumstances, DSC helps keep the vehicle on a safe path, within physical limits, by reducing engine output and by applying the brakes in individual wheels. The laws of physics cannot be repealed, even with DSC. An appropriate driving style always remains the responsibility of the driver. Do not squander the additional margin of safety by driving dangerously; otherwise, you run the risk of causing an accident.< Driving stability control systems Your BMW is equipped with an extended array of systems designed to enhance and maintain vehicle stability even under unfavorable driving conditions. Deactivating DSC ABS Antilock Brake System ABS prevents the wheels from locking during braking. Safe steering response is maintained even during full braking. This results in an increase in the active safety. ABS is operational every time you start the engine. Safe braking, refer to page 81. 50 Online Edition for Part no. 01 41 0 013 638 - © 03/07 BMW AG Maintain pressure on the button until the DSC indicator lamp lights up, but do not press for longer than approx. 10 seconds. DTC Dynamic Traction Control and DSC are deactivated