2006 Mercedes CLK-Class Owner's Manual - Page 348
2006 Mercedes CLK-Class Manual
Page 348 highlights
Operation Tires and wheels Tire code The tire code 3 ( page 346) 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 348). Rim diameter The rim diameter 4 ( page 346) 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 346) 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 351) 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 load limit or vehicle capacity weight 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 349). The tire load rating must always be at least half of the GAWR ( page 355) 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 ( page 346) and Tire speed rating 6 ( page 346) are also referred to as "service description". 347