Mercedes-Benz G-Class Owners Manual

See also:

Interchanging the wheels
WARNING Rotate front and rear wheels only if the tires are of the same dimension. If your vehicle is equipped with mixed-size tires (different tire dimensions front vs. rear), tire rotation is ...

M+S tires
WARNING M+S tires with a tire tread depth of less than 1/6 in (4 mm) are not suitable for use in winter and do not provide sufficient traction. There is a risk of an accident. M+S tires with a ...

General notes
Mounting the emergency spare wheel is described under "Mounting a wheel"  . You should regularly check the pressure of the emergency spare wheel, particularly prior to long trips, ...