2007 Mercedes CLS-Class Owner's Manual - Page 316
2007 Mercedes CLS-Class Manual
Page 316 highlights
Operation Tires and wheels Tire code The tire code 3 ( page 314) indicates the tire construction type. The "R" stands for radial tire type. Letter "D" means diagonal or bias ply construction; letter "B" means belted-bias ply construction. At the tire manufacturer's option, any tire with a speed capability above 149 mph (240 km/h) can include a "ZR" in the size designation (for example: 245/40 ZR 18). For additional information, see "Tire speed rating" ( page 316). Rim diameter The rim diameter 4 ( page 314) is the diameter of the bead seat, not the diameter of the rim edge. Rim diameter is indicated in inches (in). Tire load rating The tire load rating 5 ( page 314) is a numerical code associated with the maximum load a tire can support. For example, a load rating of 91 corresponds to a maximum load of 1356 lbs (615 kg) the tire is designed to support. See also "Maximum tire load" ( page 319) where the maximum load associated with the load index is indicated in kilograms and lbs. Warning! Warning! G Do not overload the tires by exceeding the specified total load limit as indicated on the placard located on the driver's door B-pillar. Overloading the tires can overheat them, possibly causing a blowout. Overloading the tires can also result in handling or steering problems, or brake failure. G For additional information on tire load rating, see "Load identification" ( page 317). page 314) and Tire speed rating 6 ( page 314) are also referred to as "service description". The tire load rating must always be at least half of the GAWR ( page 323) of your vehicle. Otherwise, tire failure may be the result which may cause an accident and/or serious personal injury to you or others. Always replace rims and tires with the same designation, manufacturer and type as shown on the original part. i Tire load rating 5 ( 315