A4 Quattro Sedan V6-3.0L (AVK) (2002)
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Remove oxygen sensor behind catalytic convertor (arrow) using special tool -3337/7-.
NOTE:
Illustration is shown with engine removed.
Installing
Installing is reverse of removal, noting the following:
NOTE:
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Oxygen sensor threads are coated with an assembly paste. This paste must not be allowed to enter the sensor openings.
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Cable ties must always be installed again in exactly the same place to prevent the sensor wire from contacting the exhaust pipe.
Tightening torque: 55 Nm.