2009 Mercedes CLS-Class Owner's Manual - Page 215

Operation Tires and wheels X If you have overfilled the tire, release tire inflation pressure by pushing the metal stem of the valve with e.g. a tip of a pen. Then recheck the tire inflation pressure with the tire gauge. Install the valve cap. Repeat this procedure for each tire. Rwhen you are driving in a very sporty manner (involving rapid acceleration or high speeds in curves) you are driving with a loaded roof rack or heavily laden vehicle Rwhen X X Run Flat Indicator (Canada only) While the vehicle is being driven, the Run Flat Indicator monitors the set tire inflation pressures by evaluating each wheel's rotational speed. This allows the system to detect a significant loss of pressure in a tire. If a wheel's rotational speed changes due to falling tire inflation pressure, you will see a corresponding warning message in the multifunction display. The Run Flat Indicator may function in a restricted manner or with a delay Rwhen snow chains are mounted to the vehi- cle Rin the presence of ice and snow Rwhen you are driving on a loose surface (e.g. sand or gravel) G Warning! When the multifunction display shows the message Tire Pressure Check Tires, one or more of your tires is significantly underinflated. You should stop and check your tires as soon as possible, and inflate them to the proper tire inflation pressure as indicated on the vehicle's Tire and Loading Information placard or, if available, on the tire inflation pressure label. 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. Each tire, including the spare, should be checked every other week when cold and set to the recommended tire inflation pressure as specified on the Tire and Loading Information placard on the driver's door B-pillar or, if available, on the tire inflation pressure label located on the inside of the fuel filler flap. i The recommended tire inflation pressures for your vehicle can be found on the Tire and Loading Information placard located on the driver's door B-pillar (Y page 206) or, if available, on the tire inflation pressure label on the on the inside of the fuel filler flap (Y page 197). The tire inflation pressures are not listed in the Operator's Manual. G Warning! The Run Flat Indicator does not provide a warning for wrongly selected tire inflation pressures. Always adjust tire inflation pressure according to the Tire and Loading Information placard on the driver's door B-pillar or, if available, on the tire inflation pressure label located on the inside of the fuel filler flap. The Run Flat Indicator does not replace regular checks of the tire inflation pressures since a gradual pressure loss in more than one tire 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 apply- Z 213