November 01, 2011
Special tools needed for the Audi Q7
New or relocated tire(s) must be initialized
By: Information provided by Mitchell 1
Figure 1
SUBJECT VEHICLE: 2010 Audi Q7.
SPECIAL TOOLS NEEDED? Yes, a torque wrench (V.A.G. 1410), and socket (V.A.G. 1410/1).
If a wheel sensor of the tire pressure monitoring system (TPMS) on the 2010 Audi Q7 senses a significant loss of air pressure in one or more tires, the sensor(s) sends signals (values) to the tire pressure monitoring antenna. The antenna transfers the values to the tire pressure control module.
The control module then transfers the values to the driver information system in the instrument cluster. Then it displays a flat tire symbol and the text message “CHECK TIRE PRESSURE.” After a few seconds, the message is replaced by the regular display; press the “CHECK” button to show the message again. If tire pressure is significantly different in one or more tires, check the tire(s) for damage or foreign objects. Replace the tire(s) if necessary.
The low pressure warning light in the instrument cluster illuminates when:
• Tire pressure is 7 psi (48 kPa) lower than it should be;
• Wheel(s) are installed without a tire pressure sensor;
• Winter tires are installed;
• Incorrect pressure sensors are installed.
To remove an old sensor, follow these steps.
1. Remove tire and wheel assembly from the vehicle.
2. Demount the tire from the wheel following the tire changer manufacturer’s instructions while paying special attention to the following to avoid damaging the pressure sensor:
a. Press the tire off both rim edges on the opposite side to the metal valve.
b. Turn the wheel on the tire mounting equipment so that the valve/tire pressure sensor is opposite the mounting head. NOTE: To perform this procedure, a torque wrench (V.A.G. 1410) and socket (V.A.G. 1410/1) are required.
3. To remove the Beru System tire pressure sensors:
a. While holding the tire pressure sensor against the wheel rim, remove the torx fastener. See Figure. 2.
b. While counter-holding the metal valve body, remove union nut and metal valve. See Figure 3.
c. Remove and discard the valve insert from the valve stem.
To install a new sensor, follow these steps. NOTE: When reusing tire pressure sensors, inspect the connection between the sensor and the metal valve for damage. It is also necessary to replace the valve nut, nickel-plated valve insert, sealing ring, sealing washer and valve cap when reusing tire pressure sensors. See Figure 1.
1. To install Beru System tire pressure sensors:
a. Install the metal valve body, and while counter-holding the valve (for example, 2 mm twist drill or counter holding tool — see Figure 1), tighten the union nut to specification.
b. Press and hold the tire pressure sensor against the wheel rim and tighten the torx fastener to specification.
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