Saving a new reference value for tire pressure monitoring

The tire pressure monitoring system needs a reference value to work from. This means that the value needs to be reset in certain circumstances for the system to work properly.

A new reference value needs to be stored when certain changes have been made, such as every time you adjust the tire pressure or change the tires. The reference value may also need to be updated when there is a significant change in the vehicle's weight due to loading or unloading.

 Warning

The exhaust gases contain carbon monoxide, which is invisible and odorless, but highly toxic. The procedure to store a new tire pressure must therefore always be performed outdoors or in a workshop with exhaust extraction.
Turn the vehicle off.
Inflate the tires to the correct tire pressure.1
Start the vehicle.
Press the vehicle symbol in the bottom bar and go to Status → Tire pressure.
Select Update reference pressure.

 Note

The Update reference pressure button is used to store a new reference value for the tire pressure monitoring system. For safety reasons, you can only make updates when the vehicle is turned on and stationary.
Confirm that you want to store a new value. The confirmation step helps prevent changing the new reference value by mistake.
This overwrites the previous tire pressure and enters a new reference value.
Start driving the vehicle. The new value will be stored after driving for several minutes at a speed above 35 km/h (22 mph).
  • Once a new reference value is stored, the animation showing the saving progress disappears from the center display.
  • If storing fails, an error message is shown.
  1. 1See the tire pressure label on the driver's side door pillar or the relevant section in the manual for information on recommended tire pressure for your vehicle.