Mercedes-Benz GL-Class: Notes on regularly inspecting wheelsand tires - Operation - Wheels and tires - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: Notes on regularly inspecting wheelsand tires

WARNING Regularly check the tires for damage. 
Regularly check the tires for damage.
Damaged tires can cause tire inflation pressure loss. As a result, you could lose control of your vehicle.
Worn, old tires can cause accidents. If the tire tread is worn to minimum tread depth, or if the tires have sustained damage, replace them.

Regularly check the wheels and tires of your vehicle for damage (e.g. cuts, punctures, tears, bulges on tires and deformation or cracks or severe corrosion on wheels) at least once a month, as well as after driving off-road or on rough roads.

Damaged wheels can cause a loss of tire pressure.

Regularly check the tire tread depth and the condition of the tread across the whole width of the tire. If necessary, turn the front wheels to full lock in order to inspect the inner side of the tire surface.

All wheels must have a valve cap to protect the valve against dirt and moisture. Do not mount anything onto the valve (such as tire pressure monitoring systems) other than the standard valve cap or other valve caps approved by Mercedes-Benz for your vehicle.

Regularly check the pressure of all the tires including the emergency spare wheel or the spare wheel, particularly prior to long trips, and correct the pressure as necessary.

    Notes on driving
    • If the vehicle is heavily laden, check the tire pressures and correct them if necessary. • When parking your vehicle, make sure that the tires do not get deformed by the curb or other obst ...

    Tire tread
    WARNING   Although the applicable federal motor vehicle safety laws consider a tire to be worn when the tread wear indicators (TWI) become visible at approximately 1/16 in (1.6 mm), we r ...

    See also:

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    If available, the Ultrasonic Rear Parking Assist (URPA) system uses sensors on the rear bumper to assist with parking and avoiding objects while in R (Reverse). WARNING The URPA system does not ...

    Avoiding flat spots
    In order to minimize flat spotting, the tire pressures can be increased to the maximum as stated on the tire sidewall, for the period when the vehicle is stationary. Tires must be returned to the ...