Mercedes-Benz GL-Class: Checking the tire pressures - Tire pressure - Wheels and tires - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: Checking the tire pressures

Important safety notes

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.

Check the tire pressure at least once a month.

Only check and correct tire pressures when the tires are cold.

Checking tire pressure manually

To determine and set the correct tire pressure, proceed as follows:

Remove the valve cap of the tire that is to be checked.
Press the tire pressure gauge securely onto the valve.
Read the tire pressure and compare it with the recommended value on the Tire and Loading Information placard on the B-pillar on the driver's side of your vehicle.
If necessary, increase the tire pressure to the recommended value.
If the tire pressure is too high, release air by pressing down the metal pin in the valve using the tip of a pen, for example. Then check the tire pressure again using the tire pressure gauge.
Screw the valve cap onto the valve.
Repeat these steps for the other tires.

    Maximum tire pressure
    WARNING   Never exceed the maximum tire inflation pressure. Follow recommended tire inflation pressures. Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, ...

    Tire pressure loss warning system(Canada only)
    Important safety notes While the vehicle is in motion, the tire pressure loss warning system monitors the set tire pressure using the rotational speed of the wheels. This enables the system to det ...

    See also:

    Roof carrier
    Important safety notes WARNING   Only use carriers when the crossbars have been completely mounted. The left and right roof rails are only stabilized by means of the crossbars mounted. ...

    AM-FM Radio
    Radio Data System (RDS) The Radio Data System (RDS) feature is available for use only on FM stations that broadcast RDS information. This system relies upon receiving specific information from th ...

    Dynamic stability control (DSC) (Amber)
    Illuminates briefly as a bulb check when the ignition is switched on. If the lamp flashes while driving, the DSC system is active. If the lamp illuminates continuously while driving, there is a f ...