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Preheated oxygen sensor 1, OBD II; before catalytic converter (592Fa)

Preheated oxygen sensor 1, OBD II; before catalytic converter (592Fa)

To remove


1. Remove the engine cover.


2. Unplug the connector to the crankshaft position sensor so that the oxygen sensor connector is accessible.

3. Unplug the oxygen sensor connector.

4. Withdraw the oxygen sensor's connector and cable, taking care to avoid bending it.


5. Undo the oxygen sensor with a 22 mm dog-leg spanner or similar tool.


To fit



1. Apply Molykote 1000 (part no. 30 20 971) or equivalent to the oxygen sensor threads.

2. Fit the oxygen sensor and tighten it with a 22 mm dog-leg spanner.

Tightening torque 50 Nm (37 lbf ft)

3. Carefully run the cable back to the oxygen sensor connector.

Important

The cables must not be twisted. Twisted cables exposed to vibration can break.

The oxygen sensor is sensitive to impact and jolting and must be handled with care.


Important

Chemicals such as contact spray and grease must not come into contact with the oxygen sensor connectors.


4. Plug in the oxygen sensor and crankshaft position sensor connectors.

5. Fit the engine cover.