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Z4の取扱説明書・マニュアル [全120ページ 3.82MB]

ReferenceAt a glanceControlsDriving tipsMobility 691.Close all windows2.Increase the air supply from the air condi-tioner or automatic clim ate control to a high level. Refer to page 58 or61.Hot exhaust system High temperatures occur with every vehi-cle equipped with a catalytic converter. Heat shields are installed adjacent to some sec-tions of the exhaust system. Never remove these shields; do not apply undercoating to their surfaces. When driving, standing at idle and parking the vehicle, take care to avoid con-tact between the hot exhaust system and flam-mable materials, e.g. hay, leaves, grass, etc. Such contact could lead to a fire, resulting in serious personal injury and property damage. <Hydroplaning When driving on wet or slushy roads, reduce vehicle speed. If you do not, a wedge of water may form between the tires and the road surface. This phenomenon can lead to partial or complete loss of traction, vehicle con-trol and braking effectiveness. <Driving through water Do not drive through water on the road if it is deeper than 1 ft/30 cm, and then only at walking speed. Otherwise, the vehicle's engine, the electrical systems and the transmission may be damaged.<Use the parking brake on inclinesOn inclines, keep the vehicle from rolling by using the parking brake rather than by slipping the clutch, which would lead to a high degree of clutch wear. <Braking safely Your BMW is equipped with ABS as a standard feature. If you are in a situation which requires full braking, it is best to brake using maximum brake pressure: panic stop. Since the vehicle maintains steering respon siveness, you can still avoid possible obstacles with a minimum of steering effort.Pulsation at the brake pedal combines with sounds from the hydraulic circuits to indicate to the driver that ABS is in its active mode.Wet roadsIf the roads are wet or if there is heavy rain, it is advisable to gently pres s the brakes for a brief moment every few mile s/kilometers. Watch traffic conditions to ensu re that this maneuver does not endanger other road users. The resulting heat dries the brake rotors and brake pads. Immediate braking force is then available if necessary.InclinesTo prevent overheating and, as a result, diminished braking effectiveness, drive down long or steep down hill grades in a gear which requires the leas t braking. Otherwise, even light but consiste nt pedal pressure can lead to high temperatures, brake wear and pos-sibly even brake failure. <The braking power of the engine can be further enhanced by downshifting the automatic trans-mission in manual mode, if necessary, into first gear; refer to pages 39 and41. This prevents an excessive load on the brakes.Do not coast with the clutch depressed or with the transmission or selector lever in Neutral. Do not coast with the engine switched off. Otherwise, the engine provides no braking effect while the transmi ssion is in idling posi-tion, and there is no powe r-assist for braking or steering when the engine is off.Floor mats, floor carpets or other objects must not be in the area near the brake or accelerator pedal, as this could impair the movement of the pedals.<Corrosion on the brake rotors Limited vehicle use, extended periods with the vehicle parked or in storage, and operating con-ditions in which braking is restricted to gentle, low-pressure applications will all increase the tendency for corrosion to form on the rotors and contamination to accumulate on the brake pads. This occurs beca use the minimal pres-

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