2011 Mercedes R-Class Owner's Manual - Page 326

324 Tire pressures Additional specifications of tire pressure values for loads can also be found on the tire pressure table on the inside of the fuel filler flap. The tire pressure for emergency spare wheels can be found: Ron the yellow sticker on the wheel rim of the emergency spare wheel Rin the "Tires" section (Y page 343) in this Operator's Manual Ron the Tire and Loading Information placard on the driver's door B-pillar Tire pressure table with tire sizes (example) Tires and wheels i The specifications shown in the examples in the tire pressure tables are only examples. Tire pressure specifications are vehicle-specific and may deviate from the data shown here. The tire pressure specifications that are valid for your vehicle can be found on your vehicle's tire pressure table. The tire pressures in the tire pressure table on the inside of the fuel filler flap are valid for all approved tires installed at the factory, unless stated otherwise. Some tire pressure tables only show the rim diameter instead of the complete tire size, e.g. R18. The rim diameter is a component of the tire size and can be read from the tire sidewall (Y page 337). i For vehicles towing a trailer, the fully laden value on the tire inflation pressure label located on the inside of the fuel filler flap is valid for the rear axle. Potential problems caused by overinflated/underinflated tires The tire pressure table is valid for all approved tires installed at the factory (example) Underinflated tires G Warning Follow recommended tire inflation pressures. Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect handling and fuel economy, and are more likely to fail from being overheated. If the tire pressure precedes a tire size, the tire pressure specification is only valid for this tire size. The vehicle loading conditions "partially laden" or "fully laden" are specified using a differing number of persons and luggage in the table. The actual number of seats may differ from this.