Applies to: Audi Q7s with tyre pressure monitoring system
If the tyre pressure monitoring system is inoperative, the indicator lamp 
will appear in the instrument cluster display together with the message Tyre pressure: fault. See owner s manual.
will appear in the instrument cluster display together with the message Tyre pressure: fault. See owner s manual. If the indicator lamp appears after you have switched on the ignition or while you are driving and the indicator lamp
flashes for approximately one minute and then remains lit, there is a fault in the system. This fault can have the following causes:
appears after you have switched on the ignition or while you are driving and the indicator lamp flashes for approximately one minute and then remains lit, there is a fault in the system. This fault can have the following causes:- If the display appears at the end of the initialisation process, this means that the system cannot detect the wheel sensors required to monitor the pressures. This can happen if one or more of the tyres fitted does not have a sensor or the sensors are incompatible.
- One of the wheel sensors or another component may not be working.
- Snow chains interfere with the signals transmitted by the sensors and can prevent the system from functioning properly.
- The tyre pressure monitoring system may be inoperative due to radio interference.
- Radio systems operating on the same frequency, such as radio headphones or two-way radios inside the Audi Q7, produce strong electromagnetic fields which cause temporary interference.
The indicator lamp and the message will disappear as soon as the tyre pressure monitoring system is available again. If the fault persists and the indicator lamp stays on, you should drive to a qualified workshop and have the fault rectified.
and the message will disappear as soon as the tyre pressure monitoring system is available again. If the fault persists and the indicator lamp stays on, you should drive to a qualified workshop and have the fault rectified.