audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Throttle Full Close Switch > < Oxygen Sensor Heating|Page 765
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Oxygen Sensor: Service and Repair

NOTE:  The oxygen sensor replacement interval is 60,000 miles. An OXS mileage counter is not used.

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disconnect oxygen sensor lead (1)

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disconnect oxygen sensor heater connector (2) from harness connector (3)

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unscrew oxygen sensor (arrow) from exhaust Oust ahead of catalyst)

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installation is reverse of removal procedure

CAUTION:  oxygen sensor threads must be coated with Anti-seize compound before installing. If the sensor has not already been coated in production,
carefully apply a coating to the threads taking extreme care not to allow Anti-seize into the sensor slots.

Throttle Full Close Switch > < Oxygen Sensor Heating|Page 765