Replacing Oxygen Control Sensor

WARNING: This page is about a different car, the 2003 BMW 530i, 2002 BMW 530i, and 2001 BMW 530i. However, it is still accessible from the selected car via links, so may be relevant.

(for work step number 13 00 002)

Read out fault memory, clear if necessary.

NOTE: The plug connection must be disconnected before the oxygen control sensor is removed.

If the plug connection separation point is below the cover for the fuel injectors:

If necessary, remove lower section of microfilter housing.

Remove cover from fuel injectors.

Unclip oxygen control sensor cable from retainer.

Disconnect plug connection for oxygen control sensor.

Release oxygen control sensor with special tool 11 7 020.

Installation:

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

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

Part of oxygen control sensor which projects into exhaust system branch must not be cleaned or come into contact with lubricant.

Fig 1: Removing Oxygen Control Sensor Cable

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Secure oxygen control sensor with special tool 11 7 020.

Tightening torque, refer to 11 78 1AZ in ENGINE MECHANICAL - TIGHTENING TORQUES - 530I (E39) .

Pay attention to cable routing of oxygen control sensor.

Fig 2: Installing Oxygen Control Sensor Cable

Courtesy of BMW OF NORTH AMERICA, INC.