2011 Mercedes S-Class Owner's Manual - Page 505

Wheel/tire combinations The wear patterns on the front and rear tires differ, depending on the operating conditions. Rotate the wheels before a clear wear pattern has formed on the tires. Front tires typically wear more on the shoulders and the rear tires in the center. If your vehicle's tire configuration allows, you can rotate the wheels according to the intervals in the tire manufacturer's warranty book in your vehicle documents. If no warranty book is available, the tires should be rotated every 3000 to 6000 miles (5000 to 10000 km), or earlier if tire wear requires. Do not change the direction of wheel rotation. Clean the contact surfaces of the wheel and the brake disc thoroughly every time a wheel is interchanged. Check the tire pressures. Information on changing a wheel and fitting the spare wheel (Y page 463). 503 Storing wheels Store wheels that are not being used in a cool, dry and preferably dark place. Protect the tires from contact with oil, grease and fuel. Cleaning the wheels G Warning Do not use power washers with circular jet nozzles (concentrated-power jets) to clean your vehicle, especially for cleaning tires. You could otherwise damage the tires and cause an accident. Wheel/tire combinations Points to remember G Warning Observe the "Important safety notes" (Y page 480). Direction of rotation Tires with a specified direction of rotation have additional benefits, e.g. if there is a risk of hydroplaning. You will only gain these benefits if the correct direction of rotation is observed. An arrow on the sidewall of the tire indicates its correct direction of rotation. You may install an emergency spare wheel/ spare wheel against the direction of rotation. Observe the time restriction on use as well as the speed limitation specified on the emergency spare wheel/spare wheel. ! For safety reasons, Mercedes-Benz recommends that you only use tires, wheels and accessories which have been approved by Mercedes-Benz specifically for your vehicle. These tires have been specially adapted for use with the control systems, such as ABS or ESP®, and are marked as follows: RMO = Mercedes-Benz Original RMOE = Mercedes-Benz Original Extended (tires with run-flat characteristics) RMO1 = Mercedes-Benz Original (only certain AMG tires) Mercedes-Benz Original Extended tires may only be used on wheels that have been specifically approved by Mercedes-Benz. Only use tires, wheels or accessories tested and approved by Mercedes-Benz. Certain characteristics, e.g. handling, vehicle noise emissions or fuel consumption, may otherwise be adversely affected. In addition, when driving with a Z Tires and wheels ! On vehicles installed with a tire pressure monitor, electronic components are located in the wheel. Tire-mounting tools should not be applied in the area of the valve, as this could damage the electronic components. Always have the tires changed at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.