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Audi Workshop Service and Repair Manuals

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CDAA: Removing and installing Lambda probe after catalytic converterG130 and Lambda probe 1 heater after catalytic converterZ29 > < Removing and installing Lambda probeG39 and Lambda probe heaterZ19 before catalytic converter (engine codes BYT, BZB and BPU)

A3 Mk2

Removing and installing Lambda probeG39 and Lambda probe heaterZ19 before catalytic converter (engine code CDAA)
Removing and installing Lambda probe -G39- and Lambda probe heater -Z19- before catalytic converter (engine code CDAA)
Special tools and workshop equipment required
   
t  Lambda probe open ring spanner set -3337-
Removing Lambda probe
–  Remove cover (right-side) from underbody.
  W00-0206
–  Unplug electrical connector -1- for Lambda probe -G39- and Lambda probe heater -Z19-.
  A24-10127
–  Unscrew Lambda probe -G39--1- using tool from Lambda probe open ring spanner set -3337-.
Installing Lambda probe
When installing, note the following:
  Note
t  Threads of new Lambda probes are already coated with assembly paste; the paste must not get into the slots on the probe body.
t  In the case of a used Lambda probe grease only the thread with high-temperature paste. The paste must not get into the slots on the Lambda probe body. High-temperature paste → Parts catalogue
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.
l  Tightening torque: Lambda probe - overview → Chapter
  A24-10605

CDAA: Removing and installing Lambda probe after catalytic converterG130 and Lambda probe 1 heater after catalytic converterZ29 > < Removing and installing Lambda probeG39 and Lambda probe heaterZ19 before catalytic converter (engine codes BYT, BZB and BPU)