Tire Pressure Monitor Systems Audi Q5 I

DESCRIPTION & OPERATION

Note. Whenever tire pressures are adjusted to be different than the previously stored pressures, the new pressures have to be stored. If wheels are rotated or changed, tire pressures must be stored. See RESET PROCEDURES .

Note. This vehicle is equipped with an Indirect TPM System. Vehicle IS NOT equipped with tire pressure sensors mounted on the wheels.

TIRE PRESSURE MONITOR (TPM) SYSTEM

Note. To ensue a proper TPMS function use Audi original tires, which are marked with either "AO" or "RO" on the tire sidewall.

With the help of the ABS speed sensor, the tire pressure monitoring system compares both the rolling circumference and the vibration behavior of the individual wheels. The instrument cluster display shows if there are any changes to one or more wheels. If only one wheel is affected, the location of the wheel will be indicated.

The tire pressure monitoring system is a software module in the ABS/ESC control module for detecting slow losses of pressure at a wheel. With the help of the ABS speed sensors, the TPMS compares the speed and rolling circumference of the individuals wheels. If the rolling circumference of a wheel changes, the TPMS indicator symbol lights up in the instrument cluster, and a message is displayed. The driver message in the display goes out after 5 seconds. The message can be displayed again by

1. Q5: Pressing the SET button (the left button located above the center of the steering wheel).
2. Q7: Pressing the CHECK button (located at right side of instrument cluster).

The rolling circumference of the tire can change if

1. The tire pressure is too low.
2. The tire has structural damage.
3. The tire or the pressure was changed and the tire pressures were not saved.
4. The vehicle is loaded on one side.
5. The tires on one axle are loaded more heavily (e.g. when towing a trailer or driving up and down inclines).
6. Snow chains are installed.
7. The spare tire is installed.
8. One tire per axle was changed (or if the tires were rotated from front to back or the other way around).
9. The left and right wheels drive on different surfaces for an extended period of time.

TIRE PRESSURE MONITOR WARNING INDICATORS

The tire pressure monitoring display in the instrument cluster informs the driver if the tire pressure is too low or if there is a system malfunction.

If the indicator lamp blinks for approximately 1 minute after switching the ignition on and then stays on continuously, there is a system malfunction. "TPMS" is also displayed in the instrument cluster.

A system malfunction is stored in the ABS/ESC control module and indicated by the yellow TPMS lamp in the instrument cluster. The TPMS lamp cannot be switched off by pressing the multimedia control head button (Scheme 14) Proceed as follows if there is a fault stored in the DTC memory

1. Connect vehicle diagnostic tester and select "Guided Fault Finding".
2. Select the corresponding program in "Guided Functions".
3. Follow the prompts on the screen.

RESET PROCEDURES

Note. Whenever tire pressures are adjusted to be different than the previously stored pressures, the new pressures have to be stored. If wheels are rotated or changed, tire pressures must be stored.

When the tire pressure warning light illuminates and warning message appears, immediately check air pressure of all tires and adjust to the specified pressure. Ensure warning indicators go out after driving several minutes.

STORING TIRE INFLATION PRESSURES

The tire pressures must be saved in either the radio or MMI (depending on equipment) each time the tire pressure is adjusted or a tire is changed. Switch the ignition on, select the "CAR" function button and select the tire pressure monitoring system using the rotary switch on the multimedia control head knob and save the tire pressure by pressing the rotary knob. (Scheme 14)

1. Select: The CAR function button > TIRE PRESSURE MONITORING > STORE CURR. TIRE PRESSURES
2. Or
3. Select: The CAR SYSTEMS control button > TIRE PRESSURE MONITORING > STORE TIRE PRESSURES

Scheme 14

DISMOUNTING/MOUNTING PROCEDURES

Note. This vehicle is equipped with an Indirect TPM System. Vehicle IS NOT equipped with tire pressure sensors mounted on the wheels. No special procedures are required to service tires, as the TPM system does not use in-tire sensors. The tire pressure monitoring system is a software module in the ABS/ESC control module for detecting slow losses of tire pressure.

Note. Whenever tire pressures are adjusted to be different than the previously stored pressures, the new pressures have to be stored. If wheels are rotated or changed, tire pressures must be stored. See RESET PROCEDURES .

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

See also:
• RESET PROCEDURES