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X3の取扱説明書・マニュアル [全133ページ 8.37MB]

Technology for comfort, convenience and safety48MalfunctionThe LED in the button flashes and a short con-tinuous 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 sen-sors.System limitsEven 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 ultra-sonic measurement, such as those encoun-tered with tow bars and trailer couplings, or thin and wedge-shaped objects, etc. Low objects already displayed, e.g. a curb, can come into the blind spot of the sensors before a continuous tone sounds. The system may fail to detect higher obstacles such as ledges.Loud sources of sound, inside and outside the vehicle, could drown out the PDC signal tone. <Driving stability control systemsYour BMW is equipped with an extended array of systems designed to enhance and maintain vehicle stability even under unfavorable driving conditions.ABS Antilock Brake SystemABS 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 78.Electronic brake-force distributionThe system controls the brake pressure in the rear wheels to ensure a stable braking behavior.DBC Dynamic Brake ControlWhen 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.DSC Dynamic Stability ControlDSC prevents slip at the drive wheels when starting off and accelerating. DSC 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 circum-stances, 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 DSC is operational every time you start the engine.The laws of physics cannot be repealed, even with DSC. An appropriate driving style always remains the responsibility of the driver. Do not reduce the additional safety mar-gin again by taking unnecessary risks. <Indicator lampThe indicator lamp goes out shortly after the engine starts.When the indicator lamp flashes:DSC is controlling the drive and braking forces.When the indicator lamp stays lit:DSC has been switched off with the button.

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