Mercedes-Benz GL-Class: Tire pressure specifications - Tire pressure - Wheels and tires - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: Tire pressure specifications

WARNING Follow recommended tire inflation pressures. 
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.
Do not overinflate tires. Overinflated tires can adversely affect handling and ride comfort, wear unevenly, increase stopping distance, and result in sudden deflation (blowout) because they are more likely to become punctured or damaged by road debris, potholes etc.
Do not overload the tires by exceeding the specified load limit as indicated on the Tire and Loading Information placard 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.

 You will find a table of recommended tire pressures on the Tire and Loading Information placard on the B-pillar on the driver's side. You will find a table of tire pressures for various operating conditions on the inside of your vehicle's fuel filler flap.

To test tire pressure, use a suitable tire pressure gauge. The outer appearance of a tire does not permit any reliable conclusion about the tire pressure. On vehicles equipped with the electronic tire pressure monitoring system, the tire pressure can be checked using the on-board computer.

WARNING Should the tire pressure drop repeatedly: 
Should the tire pressure drop repeatedly:
check the tire for foreign bodies.
check whether the wheel is losing air or the valve is leaking.
make sure that only a valve cap approved by Mercedes-Benz is installed on the tire valve.
Tire pressures that are too low have a negative effect on vehicle safety, which could lead you to cause an accident.

Only correct tire pressures when the tires are cold. The tires are cold when the vehicle has been parked for at least three hours or driven for less than 1 mile (1.6 km). The tire temperature changes depending on the outside temperature, the vehicle speed and the tire load. If the tire temperature changes

by 18 °F (10 °C), the tire pressure changes by approximately 10 kPa (0.1 bar/1.5 psi). Take this into account when checking the pressure of warm tires and only correct the tire pressure if it is too low for the current operating conditions. If you check the tire pressure when the tires are warm, the resulting value will be higher than if the tires were cold. This is normal. Do not reduce the tire pressure to the value specified for cold tires. The tire pressure would otherwise be too low.

Observe the recommended tire pressure specifications for cold tires on the Tire and Loading Information placard on the B-pillar on the driver's side.

Tire and Loading Information placard are The specifications given on the following Tire and Loading Information placard are examples. Tire pressure specifications are vehicle-specific and may deviate from the data shown here. The tire pressures applicable to your vehicle can be found on the Tire and Loading Information placard on your vehicle.

You will find recommended tire pressure specifications 1 for cold tires and for a fully loaded vehicle on the Tire and Loading Information placard. The tire pressure information is applicable to all tires mounted at the factory.

    Important notes on tire pressure
    WARNING   If the tire pressure drops repeatedly, check the tires for punctures from foreign objects and/or whether air is leaking from the valves or from around the rim. The tire temper ...

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