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Wheel alignment > < Changing a tyre

A4 Mk3

Removing and installing tyre pressure sensor
Removing and installing tyre pressure sensor
Special tools and workshop equipment required
   
t  Torque wrench -V.A.G 1410-
  W00-0554
Removing
–  Remove union nut -1-.
–  Remove tyre pressure sensor-2- from base of rim.
Installing
  Note
t  Always renew damaged sensors.
t  When fitting used tyre pressure sensors, inspect the connection between the sensor and the valve for damage.
t  For safety reasons, the tyre pressure sensor must be renewed and the wheel rim must be cleaned if tyre sealing compound has been used.
t  Do not use steam cleaners or a powerful jet of compressed air to clean the tyre pressure sensor.
t  Hold the valve body when sliding on the new seal and sealing washer to prevent it from being pushed out (this could damage the aerial connection).
  N44-10241
–  Insert sensor -2- with new seal and sealing washer through rim from inside and press seal into centre of valve hole → Electronic parts catalogue. Perform a visual inspection to check that the valve stem is located centrally in the valve hole.
–  Screw union nut -1- onto tyre pressure sensor-2-. At the same time, press sensor against base of rim and hold in position.
  Caution
When tightening the union nut, avoid exerting excessive pressure on the union nut and tool.
  N44-10241
–  Press tyre pressure sensor-1- against base of rim and tighten union nut → Chapter.
  Note
t  After installation, the tyre pressure sensor must be seated firmly against the base of the rim.
t  The sealing washer -arrow- will be deformed slightly when the nut is tightened.
  N44-10242

Wheel alignment > < Changing a tyre