2009 Mercedes SL-Class Owner's Manual - Page 233

Operation Tires and wheels Bar Another metric unit for air pressure. There are 14.5038 pounds per square inch (psi) to 1 bar; there are 100 kilopascals (kPa) to 1 bar. GAWR (Gross Axle Weight Rating) The GAWR is the maximum permissible axle weight. The gross vehicle weight on each axle must never exceed the GAWR for the front and rear axle indicated on the certification label located on the driver's door B-pillar. pressure is bar. There are 100 kilopascals (kPa) to 1 bar. Maximum load rating The maximum load in kilograms and pounds that can be carried by the tire. Bead The tire bead contains steel wires wrapped by steel cords that hold the tire onto the rim. GVW (Gross Vehicle Weight) The GVW comprises the weight of the vehicle including fuel, tools, spare wheel, installed accessories, passengers and cargo and, if applicable, trailer tongue load. The GVW must never exceed the GVWR indicated on the certification label located on the driver's door B-pillar. Maximum loaded vehicle weight The sum of curb weight, accessory weight, total load limit, and production options weight. Cold tire inflation pressure Tire inflation pressure when your vehicle has been sitting for at least 3 hours or driven no more than 1 mile (1.6 km). Maximum permissible tire inflation pressure This number is the greatest amount of air pressure that should ever be put in the tire. Curb weight The weight of a motor vehicle with standard equipment including the maximum capacity of fuel, oil, and coolant, and, if so equipped, air conditioning and additional optional equipment, but without passengers and cargo. GVWR (Gross Vehicle Weight Rating) This is the maximum permissible vehicle weight of the fully loaded vehicle (weight of the vehicle including all options, passengers, fuel, and cargo and, if applicable, trailer tongue load). It is indicated on certification label located on the driver's door B-pillar. Normal occupant weight The number of occupants the vehicle is designed to seat, multiplied by 68 kilograms (150 lb). DOT (Department of Transportation) A tire branding symbol which denotes the tire meets requirements of the U.S. Department of Transportation. Kilopascal (kPa) The metric unit for air pressure. There are 6.9 kPa to 1 psi; another metric unit for air Occupant distribution The distribution of occupants in a vehicle at their designated seating positions. Z 231