2007 Mercedes S-Class Owner's Manual - Page 517

Operation Tires and wheels Reactivating the Run Flat Indicator The tire inflation pressure monitor must be reactivated in the following situations: If you have changed the tire inflation pressure If you have replaced the wheels or tires If you have installed new wheels or tires Using the tire placard on the driver's door B-pillar ( page 503) or, if available, the inside of the fuel filler flap ( page 489), make sure the tire inflation pressure of all four tires is correct. Warning! Warning! G i The menu overview can be found on ( page 243). Switch on the ignition ( page 315). Press ( or & to select the menu "Service". Press $ or % to select "Tire pressure". Press #. The message Run Flat Indicator active Reactivation possible: OK appears in the multifunction display. Press #. The message Tire pressure now OK? appears in the multifunction display. The Run Flat Indicator does not provide a warning for wrongly selected tire inflation pressures. Always adjust tire inflation pressure according to the placard on the driver's door B-pillar or fuel filler flap. The Run Flat Indicator does not replace regular checks of the tire inflation pressures since a gradual pressure loss in all four tires cannot be detected by the Run Flat Indicator. The Run Flat Indicator is not able to issue a warning due to a sudden dramatic loss of tire inflation pressure (e.g. tire blowout caused by a foreign object). In this case bring the vehicle to a halt by carefully applying the brakes and avoiding abrupt steering maneuvers. G The Run Flat Indicator can only warn you in a reliable manner if you have set the correct tire inflation pressures for each tire. If an incorrect tire inflation pressure was set, the system will monitor the pressure according to the incorrect value. 516