Rear Oxygen Sensor

Rear Oxygen Sensor (B205R)

Dismantling
1. Remove the top engine cover.







2. Detach the connector from the holder.
3. Cut the cable tie and pull out the cable.







4. Raise the car.
5. Pull down the cable and remove the oxygen sensor.

IMPORTANT: The leads must not be twisted. The oxygen sensor is highly sensitive to knocks and blows and must be handled with care.

To fit
1. Coat the oxygen sensor's threads with Molycote 1000 (30 20 971) to prevent binding.

IMPORTANT:
- The oxygen sensor is sensitive to knocks and blows and must be handled with care. It is important to ensure that the connection between it and the nipple is gastight.
- Chemicals such as contact spray and grease must not come into contact with the oxygen sensor connectors.

2. Fit the oxygen sensor.
Tightening torque: 55 Nm (41 lbf ft)







3. Run the cable as far up as possible. Lower the car.

IMPORTANT: Watch out for sharp edges, hot components, etc.

4. Run the cable forward and plug in the connector.







5. Secure the cable to the water pipe with a cable tie.
6. Fit the top engine cover.