2009 Mercedes CLS-Class Owner's Manual - Page 225

Operation Tires and wheels Index H M+S8 V M+S8 Speed rating up to 130 mph (210 km/h) up to 149 mph (240 km/h) The factory equipped tires on your vehicle may have a tire speed rating above the maximum speed permitted by the electronic speed limiter. Make sure your tires have the required tire speed rating as specified for your vehicle in the "Technical data" section (Y page 336), for example when purchasing new tires. If you are uncertain about the correct reading of the information given on a tire's sidewall, any authorized Mercedes-Benz Center will be glad to assist you. i Not all M+S rated tires provide special winter performance. Make sure the tires you use show M+S and the mountain/ snowflake.marking on the tire sidewall. These tires meet specific snow traction performance requirements of the Rubber Manufacturers Association (RMA) and the Rubber Association of Canada (RAC) and have been designed specifically for use in snow conditions. An electronic speed limiter prevents your vehicle from exceeding a speed of: R130 mph (210 km/h): CLS 550 CLS 550 (Sport Package) R155 mph (250 km/h): CLS 63 AMG R186 mph (300 km/h): CLS 63 AMG (Performance Package) 8 i For illustration purposes only. Actual data on tires are specific to each vehicle and may vary from data shown in above illustration. In addition to tire load rating, special load identification 1 may be molded into the tire sidewall following the letter designating the tire speed rating 6 (Y page 220). RNo specification given: absence of any text (like in above example) indicates a standard load (SL) tire. RXL or Extra Load: designates an extra load (or reinforced) tire. Load: designates a light load tire. D, E: designates load range associated with the maximum load a tire can carry at a specified pressure. Load identification RLight RC, 1 Load identification Z or M+S.for winter tires 223