audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Testing secondary air system > < Testing lambda probe heating
Motronic injection and ignition system (4-cyl. turbo)
Testing lambda control
Removing and installing lambda probe

Special tools and workshop equipment required

 
W00-0206
  • ◆ Ring spanner set 3337
  • ◆ High-temperature paste G 052 112 A3

Removing

 
A24-0292
  • ‒ → Unplug 4-pin connector -arrow- for lambda probe.
  • ‒ Unscrew lambda probe using special tool 3337.

Installing

When installing, note the following points:

Notes:

  • ◆ The screw thread on the lambda probe is coated with a special paste. This paste must not be allowed to penetrate the openings on the probe.
  • ◆ Tightening torque: 55 Nm.
  • ◆ When installing, always make sure that the lambda probe connector is secured in the retainer on the bulkhead.
  • ◆ A heat shield sleeve must be fitted on the connector.

Testing secondary air system > < Testing lambda probe heating