General notes
Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation pressure label. (If your vehicle has tires of a different size than the size indicated on the vehicle placard or tire inflation pressure label, you should determine the proper tire inflation pressure for those tires).
As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires is significantly under-inflated. Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly under-inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling and stopping ability.
Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver's responsibility to maintain correct tire pressure, even if under-inflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale.
Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. The TPMS malfunction indicator is combined with the low tire pressure telltale. When the system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously illuminated. This sequence will continue upon subsequent vehicle start-ups as long as the malfunction exists.
When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly.
If the Tire Pressure Monitoring System indicator appears
Applies to vehicles: with tire pressure monitoring system
The tire pressure indicator in the instrument cluster informs you if the tire pressure is too low or if there is a system malfunction.
Fig. 208 Instrument cluster: indicator light with message
Using the ABS sensors, the tire pressure monitoring system compares the tire tread circumference and vibration characteristics of the individual tires. If the pressure changes in one or more tires, this is indicated in the instrument cluster display with an indicator light and a message > fig. 208. If only one tire is affected, the location of that tire will be indicated.
The tire pressures must be stored in the Infotainment system again each time the pressures change (switching between partial and full load pressure) or after changing or replacing a tire on your vehicle. The tire pressure monitoring system only monitors the tire pressure you have stored. Refer to the tire pressure label for the recommended tire pressure for your vehicle > fig. 207.
Tire tread circumference and vibration characteristics can change and cause a tire pressure warning if:
Indicator lights
Loss of pressure in at least one tire.
Check the tires and replace or repair if necessary.
Check/correct the pressures of all four tires and store the pressure again in the Infotainment system.
(Tire Pressure Monitoring System) Tire pressure: System malfunction!. If appears after switching the ignition on or while driving and the indicator light in the instrument cluster blinks for approximately one minute and then stays on, there is system malfunction. Try to store the correct tire pressures. If the indicator light does turn off or turns on again after a short period of time, drive to your authorized Audi dealer or qualified repair facility immediately to have the malfunction corrected.
WARNING
Stop as soon as possible and check the tires and their pressure.
Tips
Storing tire pressures
Applies to vehicles: with tire pressure monitoring system
If the tire pressure changes or a tire is replaced, it must be confirmed in the infotainment system.
Tips
Do not store the tire pressures if snow chains are installed.