11 78 530 Replacing left oxygen control sensor (N62/N62TU)

NOTE:

For Special Tool identification, see ENGINE - SPECIAL TOOLS - 5-SERIES (E60) .

Special Tools Required:

11 7 030
11 9 150

(cylinder bank 5 to 8)

Necessary Preliminary Tasks:

Switch off ignition.
Remove rear underbody protection. Refer to 51 47 491 REMOVING AND INSTALLING/REPLACING REAR UNDERBODY PROTECTION .

Switch off ignition.

WARNING: Scalding hazard! Only perform this task on an engine that has cooled down.

Unlock and detach plug connection (3).

Unclip oxygen control sensor cable.

Fig 1: View Of Oxygen Control Sensor Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Release oxygen control sensor (4) with special tool 11 7 030 in conjunction with 11 9 150.

Fig 2: Locating Oxygen Control Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Threads of new oxygen sensors are already coated with Never Seez compound.

If an oxygen sensor is reused, only apply a thin and uniform coat of Never Seez compound to thread.

Oxygen sensor section projecting into exhaust system branch must not be cleaned or come into contact with lubricant.

Installation:

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

Tighten down oxygen control sensor (4) with special tool 11 7 030 in conjunction with 11 9 150.

Tightening torque, refer to 11 78 1AZ in ENGINE - TIGHTENING TORQUES - 545I (4.4L) E60 .

Fig 3: Installing Oxygen Control Sensor With Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

Pay attention to cable routing of oxygen control sensor.

Installation:

Read out fault memory of control unit of Digital Motor Electronics (DME).

Check stored fault messages.

Rectify faults.

Now clear the fault memory.