2011 Mercedes CLS-Class Owner's Manual - Page 193

219_AKB; 4; 54, en-US d2ureepe, 2009-05-11T16:21:02+02:00 - Seite 191 Version: 2.11.8.1 Tires and wheels tires are significantly underinflated. Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible. Driving on a significantly underinflated tire causes the tire to overheat and can lead to tire failure. Underinflation also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling and stopping ability. Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver's responsibility to maintain correct tire pressure, even if underinflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale. 191 Example illustration Tire pressure inquiries are made using the multifunction display. The current tire inflation pressure for each tire appears in the multifunction display after a few minutes of driving. i With a spare wheel mounted, the system may still indicate the tire inflation pressure of the removed road wheel for some minutes. If this happens, keep in mind that the indicated value where the spare wheel is mounted does not reflect the actual spare tire inflation pressure. i Operating radio transmission equipment (e.g. wireless headsets, two-way radios) in or near the vehicle could cause the TPMS to malfunction. Tire inflation pressure warnings If the system detects a significant loss of tire inflation pressure in one or more than one tire, a message appears in the multifunction display. In addition, an acoustic warning sounds and the low tire pressure telltale in the instrument cluster comes on. i Possible differences between the readings of a tire pressure gauge of an air hose, e.g. gas station equipment, and the vehicle's control system can occur. The tire pressure displayed by the control system apply to sea level. In high-altitude locations, the reading on a tire pressure gauge will be higher than the reading issued by the vehicle's control system. Do not reduce the tire inflation pressure under such circumstances. X X Switch on the ignition. Press button V or U on the multifunction steering wheel repeatedly until the standard display appears in the multifunction display (Y page 112). X Press button & or * until the current inflation pressure for each tire appears in the multifunction display. Example illustration The respective tire is indicated by a red rectangle. Z Operation When the vehicle has been parked for longer than 20 minutes, the message Tire pressure is only displayed after driving for a few minutes appears in the multifunction display.