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Removing and installing Lambda probe 2 after catalytic converterG131 > < Removing and installing Lambda probe after catalytic converterG130

A4 Mk3

Removing and installing Lambda probe 2G108
Removing and installing Lambda probe 2 -G108-
Special tools and workshop equipment required
   
t  Lambda probe open ring spanner set -3337-
  W00-0206
Removing
–  Lift off engine cover panel (rear) -2-.
  A10-11070
–  Remove bolt -arrow-.
–  Unplug electrical connector for coolant shortage indicator switch -F66- at bottom of expansion tank and move expansion tank to one side with coolant hoses -1- and -2- attached.
  A19-10068
–  Unplug electrical connector -2- for Lambda probe 2 -G108- and move wiring clear.
  A24-10515
–  Unscrew Lambda probe 2 -G108--1- using tool from Lambda probe open ring spanner set -3337-.
  Note
For illustration purposes, the installation position is shown from the rear and with the engine removed.
Installing
Installation is carried out in the reverse order; note the following:
  Note
t  New Lambda probes are coated with an assembly paste.
t  If reinstalling the old Lambda probes, coat the threads with high-temperature paste → Electronic parts catalogue.
t  The assembly paste/high-temperature paste must not get into the slots on the Lambda probe body.
t  When installing, the Lambda probe wire must always be reattached at the same locations to prevent it from coming into contact with the exhaust pipe.
t  Fit all cable ties in the original positions when installing.
l  Tightening torques: Lambda probes - overview → Chapter.
  A24-10035

Removing and installing Lambda probe 2 after catalytic converterG131 > < Removing and installing Lambda probe after catalytic converterG130