2004 Mercedes G-Class Owner's Manual - Page 238
2004 Mercedes G-Class Manual
Page 238 highlights
Operation Tires and wheels i The pressures listed for light loads are minimum values offering high driving comfort. Increased inflation pressures listed for heavier loads may also be used for light loads. These higher pressures produce favorable handling characteristics. The ride of the vehicle, however, will be somewhat harder. Never exceed the max. values or inflate tires below the min. values listed in the fuel filler flap. Tire pressure changes by approximately 1.5 psi (0.1 bar) per 18°F (10°C) of air temperature change. Keep this in mind when checking tire pressure where the temperature is different from the outside temperature. Tire temperature and tire pressure are also increased while driving, depending on the driving speed and the tire load. Warning! G Rotating wheels Follow recommended inflation pressures. Do not overinflate tires. Overinflated tires can result in sudden deflation (blowout) because they are more likely to become punctured or damaged by road debris, potholes, etc. Do not underinflate tires. Underinflated tires wear unevenly, adversely affect handling and fuel economy, and are more likely to fail from being overheated. Do not overload the tires by exceeding the Gross Vehicle Weight Rating (GVWR) and the Gross Axle Weight Rating (GAWR) as indicated on the certification label on the driver's door pillar. Overloading the tires can overheat them, possibly causing a blowout. Warning! G Rotate front and rear wheels only if there are of the same size. The wheels can be rotated every 3000 to 6000 miles (5000 to 10000 km) or sooner if necessary, according to the degree of tire wear. The same direction of tire rotation must be retained. Rotate the wheels before the characteristic tire wear pattern becomes visible (shoulder wear on front wheels and tread center wear on rear wheels). Thoroughly clean the inner side of the wheels after each rotation. Check and ensure proper tire inflation pressure. Check the spare tire periodically for condition and inflation. Spare tire will age and become worn over time even if never used, and thus should be inspected and replaced when necessary. 238