Adapt the pressure of the tires to the selected load type.
See "Fill info" in the "Tire pressure" main menu.
If this menu is not displayed, the specified tire pressures are valid for all types of vehicle load.
Selecting comfort/standard pressure For speeds up to 165 mph (270 km/h), the tire pressures can be reduced to increase driving comfort.
The Tire Pressure monitoring must be set to the applicable tire pressure (comfort pressure or standard pressure).
If you select "Comfort pressure", the TPM automatically uses lower pressure values when monitoring tire pressure.
The comfort tire pressures are included in the technical data.
Under "Fill info" in the "Tire pressure" main menu, you can compare the pressure differences with the comfort pressures.
If the tires are not yet taught, the new required pressures are displayed instead of the actual tire pressures.
For information on teaching tires:
Please see the chapter "SYSTEM LEARNING" on page 109.
Low Tire Pressure Loss of Control
Prolonged driving at low tire pressure or even short-term driving at high speeds on tires which have too low a pressure is likely to result in a loss of control of your vehicle, either due to a failure to maintain directional control under side loads or due to tire failure.
Tires are inflated to comfort pressure at the factory, which is not suitable for driving at very high speeds.
Always adjust the pressure in the tires to the standard pressure setting when driving at higher speeds.
Remember to adjust the setting in the Tire Pressure Monitoring accordingly.