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

Special tools required: 

• 11 7 030  . See ENGINE- SPECIAL TOOLS .
• 11 9 150 

(cylinder bank 5 to 8) 

Necessary preliminary tasks: 

• Switch off ignition.
• Remove reinforcement plate. See 31 10 010 REMOVING AND INSTALLING/REPLACING REINFORCEMENT PLATE .

Unlock and detach plug connection (3).

Unclip control sensor cable.

Fig 1: Identifying Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 2: Identifying Control Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

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

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

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

Tightening torque, see 11 78 1AZ  in 11 78 EMISSIONS-CONTROL, LAMBDA OXYGEN SENSOR .

Pay attention to cable routing of control sensor.

Fig 3: Tightening Control Sensor With Special Tool (11 7 030) And (11 9 150)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

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

Check stored fault messages.

Rectify faults.

Now clear the fault memory.