2010 Mercedes S-Class Owner's Manual - Page 419

Tires and wheels driver's door B-pillar. Some vehicles may have supplemental tire inflation pressure information 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 Using the Tire and Loading Information placard on the driver's door B-pillar (Y page 418) or the supplemental tire inflation pressure information on the inside of the fuel filler flap, make sure the tire inflation pressure of all four tires is correct. X Switch on the ignition. X Press button = or ; on the multifunction steering wheel to select the Service menu. X Press button 9 or : on the multifunction steering wheel to select Tire Press.. X Press button a. The current inflation pressure for each tire appears in the multifunction display or the following message appears in the multifunction display: Tire Pressure Displayed After Driving A Few Minutes X Press button :. The following message appears in the multifunction display: Use Current Pressures As New Reference Values Press 'OK' to Confirm X Press button a. The following message appears in the multifunction display: Tire Pressure Monitor Reactivated After driving a few minutes the system verifies that the current tire inflation pressures are within the system's specified range. Afterwards the current tire inflation pressures are accepted as reference values and then monitored. X 417 If you wish to cancel: Press button %. Press button 9 to exit the menu screen. or X i When the wheel positions have been changed, the inflation pressure of a tire may be displayed for the wrong position temporarily. After driving for a few minutes, the inflation pressure will be shown for the correct position. Maximum tire inflation pressure G Warning! Never exceed the maximum tire inflation pressure. Follow recommended tire inflation pressures. Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect handling and fuel economy, and are more likely to fail from being overheated. Do not overinflate tires. Overinflated tires can adversely affect handling and ride comfort, wear unevenly, increase stopping distance, and result in sudden deflation (blowout) because they are more likely to become punctured or damaged by road debris, potholes etc. i For illustration purposes only. Actual data on tires are specific to each vehicle and may vary from data shown in above illustration. Z Operation