2009 Mercedes SL-Class Owner's Manual - Page 224

Operation Tires and wheels is mounted does not reflect the actual spare tire inflation pressure. ability to steer or brake the vehicle. You might lose control over the vehicle. The TPMS usually recognizes new reference values automatically, for example when you have Radjusted Rchanged Rmounted 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. tion for driving at high speeds or for vehicle loads less than the maximum loaded vehicle condition. If such information is provided, it can be found on the inside of the fuel filler flap. X X the tire inflation pressure wheels or tires new wheels or tires Switch on the ignition. Press button è or ÿ on the multifunction steering wheel repeatedly until the standard display appears in the multifunction display (Y page 129). Press button j or k repeatedly until you see the current inflation pressures for each tire appear in the display or the following message appears in the multifunction display Tire pressure displayed after driving for a few minutes. Press the reset button (Y page 124). The following message will appear in the multifunction display: Restart tire pressure monitor? If you want to set new reference values manually: X X Using the Tire and Loading Information placard on the driver's door B-pillar (Y page 212) or, if available, the supplemental tire inflation pressure information on the inside of the fuel filler flap (Y page 201), make sure the tire inflation pressure of all four tires is correct. X The respective tire is indicated by a red rectangle. In addition, a warning signal sounds. Restarting Advanced TPMS G Warning! It is the driver's responsibility to calibrate the TPMS on the recommended cold inflation pressure. Underinflated tires affect the i Restart the TPMS after adjusting the tire inflation pressure to the inflation pressure recommended for the vehicle operating condition. Tire pressure should only be adjusted on cold tires. Observe the recommended tire inflation pressure on the Tire and Loading Information placard on the driver's door B-pillar. Some vehicles may have supplemental tire pressure informa- 222