2.4 KiB
Tyre Pressure Monitoring
Illustration of display in the instrument cluster: current tyre pressures
① Target pressure in bar. ② Actual pressure in bar. ③ Loss in pressure at front left. ④ System fault at rear right.
Functional description
The Tyre Pressure Monitoring System (TPM) monitors the tyre pressure of the four wheels while the vehicle is in motion using pressure sensors on the tyres. The system warns the driver in the event of a pressure loss.
Display of tyre pressures in the infotainment system
Open the menu Vehicle status in the Infotainment system.
Tap on Vehicle Vehicle Status Tyre pressure.
When the ignition is switched on, the last measured tyre pressures will be displayed first; these values will be updated when the journey is started. If the tyre pressure is too low, the respective actual values and the affected tyres will be highlighted.
If the tyres are in rest state, the sensors will not transmit any tyre pressures. This stops the sensor batteries discharging.
If no tyre pressures are transmitted, the last received tyre pressures are shown in grey.
Switching the Tyre Pressure Monitoring System on and off
If a set of tyres is fitted to the vehicle where the tyres either do not have tyre pressure sensors or have tyre pressure sensors that are not compatible with the vehicle, the indicator lamp will flash for approximately 1 minute and will then remain lit continuously. The tyre pressures will not be monitored. The system cannot be switched off.
Adjusting the tyre pressure
There may be differences between the readings on the pressure gauge when filling the tyres and the values determined by the TPM. The TPM is more precise.
Selecting target pressures for partial or full vehicle load level
The driver must select the appropriate target pressure depending on the vehicle load level.
Tap on \Vdash Vehicle \Vdash Vehicle Status \Vdash Tyre pressure \Vdash Standard/full load.
- The pressure sensors are secured to special aluminium valves that are screwed rigidly in place. When inflating the tyres and checking the pressure, do not bend the valves into position.- Missing valve caps could lead to damage to the valve and the sensors. Therefore, always make sure that all valve caps are fully screwed on while driving. Do not use metal valve caps.- Do not use "convenience valve caps" as they do not form a proper seal. This can cause damage to the sensors.