2010 BMW X5 Owner's Manual - Page 94
2010 BMW X5 Manual
Page 94 highlights
Technology for comfort, convenience and safety Selecting chassis and suspension tuning Self-leveling suspension* The concept The self-leveling suspension on the rear axle assures a continuous ground clearance. To do so, the height of the vehicle is measured by sensors at both rear wheels. If the actual height deviates from the defined height, e.g. due to loading of the vehicle, then this difference is compensated for very quickly. In addition, spring motions resulting from cornering or irregularities in the road surface are reduced to a minimum. The system functions automatically. Press the button. The system switches between the two chassis and suspension tuning settings. > Sport: The LED in the button lights up and SPORT is displayed in the instrument panel. > Normal: The LED in the button goes out. The selection of the chassis and suspension tuning setting is stored for the remote control currently in use. Malfunctions Malfunctions are displayed via Check Control, refer to page 77. FTM Flat Tire Monitor* The concept The Flat Tire Monitor detects a pressure loss in one tire by comparing the speeds of the individual wheels during driving. In the event of a pressure loss, there is a change in the rolling circumference and therefore the rotation speed of the corresponding wheel. The system detects this change and reports it as a flat tire. Starting assistant The starting assistant enables you to start off conveniently on slopes. The parking brake is not required for this purpose. 1. Hold the vehicle with the footbrake. 2. Release the footbrake and immediately drive off quickly. The starting assistant holds the vehicle for approx. 2 seconds after releasing the footbrake. Depending on the load, the vehicle may also roll back slightly during this time. After releasing the footbrake, immediately start quickly, otherwise the starting assistant no longer holds the vehicle after approx. 2 seconds and it begins to roll back.< Function requirements In order to assure the reliable reporting of a flat tire, the system must be initialized for the correct tire inflation pressure. The initialization must be repeated after each time the tire inflation pressure is corrected and after every tire or wheel change.< System limits The Flat Tire Monitor cannot indicate sudden severe tire damage caused by outside factors and does not detect a natural, even pressure drop in all four tires.< 92 Online Edition for Part no. 01 41 2 602 756 - © 06/09 BMW AG