11 78 613 Replacing both oxygen monitor sensors (S54)

WARNING: This page is about a different car, the 2002 BMW M Roadster, 2002 BMW M Coupe, 2001 BMW M Roadster, and 2001 BMW M Coupe. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 7 020
11 7 030
11 9 150

For identification of special tools, refer to ENGINE- SPECIAL TOOLS .

(for work step number 13 00 002)

In the US version, the oxygen monitor sensors are installed in the exhaust manifolds.

Cylinders 1 to 3: Release monitor sensor with special tool 11 9 150 in conjunction with special tool 11 7 030 and tighten down.

Installation:

When special tool 11 9 150 is used in conjunction with special tool 11 7 030, 47 N.m on the torque wrench dial corresponds to an actual tightening torque of 50 N.m.

Cylinders 4 to 6: Release monitor sensor with special tool 11 7 020 and tighten down.

Tightening torque, 11 78 1AZ. Refer to 11 78 EMISSIONS-CONTROL, LAMBDA OXYGEN SENSOR .

Installation:

The threads of new oxygen monitor sensors are already coated with Never Seez Compound.

If an oxygen monitor sensor is used again, apply a thin and even coat of Never Seez Compound to the thread only.

Do not clean that part of the oxygen sensor which projects into the exhaust system branch and do not allow it to come into contact with lubricants.

Cover oxygen monitor sensor when applying underseal.

Pay attention to cable routing for oxygen monitor sensor.