audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Relays and Modules - Computers and Control Systems > < Checking Control Function With Scan Tool|Page 2344
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Heated Oxygen Sensor: Service and Repair

REMOVING

Heated Oxygen Sensor Connector

-

Disconnect both Heated Oxygen Sensor (HO2S) harness connectors.
^

Location: right rear of engine compartment.

-

Cut tie wraps.

-

Remove HO2S sensor (front exhaust pipe near turbocharger).

INSTALLING

Note:  

Install in the reverse order of removal, noting the following:

-

Tighten to specifications:
^

Torque to 5O Nm (37 ft lb).

-

Reposition tie wraps carefully, avoiding contact between sensor wiring and exhaust pipe.

CAUTION:  

The threads of the HO2S sensor MUST be coated with an anti-seize compound. Take care that this compound does NOT enter the slits of the
HO2S probe.

Relays and Modules - Computers and Control Systems > < Checking Control Function With Scan Tool|Page 2344