186 Driving mode Tyre pressure control system Tyre pressure control system, auto- matic mode Important safety notes The tyre pressure control system serves to enhance off-road capability and traction on soft surfaces. Activating/deactivating automatic mode R The pressures of the tyres on the front and rear axles are shown in the on-board com- puter display. Driving mode R You can adjust the tyre pressure to suit the terrain while driving. R A safety device limits the upper and lower tyre pressures that can be set. R Pay attention to the tyre pressure table ( Y page 341), ( Y page 342). X To activate: make sure that the key is in position 2 in the ignition lock.
G WARNING Underinflated or overinflated tyres pose the following risks: X Press button : . Indicator lamp ; in the button lights up. Automatic tyre pressure control mode is active. R the tyres may burst, especially as the load and vehicle speed increase. X To deactivate: press button : . Indicator lamp ; in the button goes out. R the tyres may wear excessively and/or unevenly, which may greatly impair tyre traction. If you have deactivated the tyre pressure con- trol system, it is automatically reactivated if: R the driving characteristics, as well as steer- ing and braking, may be greatly impaired. There is a risk of an accident.
Observe the recommended tyre pressure and check the tyre pressure of all the tyres includ- ing the spare wheel: R you turn the key to position 2 in the ignition lock and R the engine has cooled down to the outside temperature R at least every two weeks Selecting the pressure level In automatic mode, you can select the pres- sure levels and vehicle loads. Each pressure level has a pre-stored target tyre pressure with the corresponding vehicle load. You can select a pressure level based on road surface characteristics. R when the load changes R for changed operating conditions, e.g. off- road driving If necessary, correct the tyre pressure.
R before embarking on a longer journey Preparing for a journey Every day, before starting a journey, check the tyres for external damage and check the tyre pressure in the on-board computer. The tyre pressures are displayed in the on-board computer display as soon as the key is turned to position 2 in the ignition lock.