2003 Mercedes CLK-Class Owner's Manual - Page 260

Operation Tires and wheels Tires and wheels See your authorized Mercedes-Benz Center for information on tested and recommended rims and tires for summer and winter operation. They can also offer advice concerning tire service and purchase. Warning! Warning! Retread tires are not tested or recommended by Mercedes-Benz, since previous damage cannot always be recognized on retreads. Mercedes-Benz can therefore not assure the operating safety of the vehicle when such tires are used. G Worn, old tires can cause accidents. If the tire tread is badly worn, or if the tires have sustained damage, replace them. When replacing rims, only use genuine Mercedes-Benz wheel bolts specified for the particular rim type. Failure to do so can result in the bolts loosening and possibly an accident. G Replace rims or tires with the same designation, manufacturer and type as shown on the original part. See your authorized Mercedes-Benz Center for further information. If incorrectly sized rims and tires are mounted: The wheel brakes or suspension components can be damaged. The correct operating clearance of the wheels and tires is no longer guaranteed. 260