11 78 513 Removing and Installing/Replacing Both Lambda Oxygen Control Sensors (N54)

Special tools required: 

• 11 7 030
• 11 9 150

Necessary preliminary tasks: 

• Remove acoustic cover.
• Release right tie rod on steering gear. (See 32 21 231 REPLACING LEFT OR RIGHT TIE ROD and/or 32 21 231 REPLACING LEFT OR RIGHT TIE ROD )

  Chassis/wheel alignment is not required.

Installation: 

If an oxygen sensor is to be reused, only apply a thin and uniform coat of Never Seez Compound (refer to BMW Parts Service) to thread.

The part of the oxygen control sensor which projects into the exhaust system branch (sensor ceramic) must not  be cleaned or come into contact with lubricant.

Disconnect plug connection for oxygen control sensor, cylinders 1 to 3.

Release oxygen control sensor (1) with special tools 11 7 030 and 11 9 150. (See 11 7 030 SOCKET WRENCH SOCKET WAF 22 and 11 9 150 SPECIAL WRENCH )

Tightening torque, see 11 78 1AZ in ENGINE -- TORQUE SPECIFICATIONS -- TWIN TURBO

Installation: 

Cable color black, cylinders 1 to 3.

Fig 1: Identifying Special Tools (11 7 030 & 11 9 150) On Oxygen Control Sensor Cylinders 1 To 3

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection for oxygen control sensor, cylinders 4 to 6.

Release oxygen control sensor (1) with special tools 11 7 030 and 11 9 150. (See 11 7 030 SOCKET WRENCH SOCKET WAF 22 and 11 9 150 SPECIAL WRENCH )

Tightening torque, see 11 78 1AZ in ENGINE -- TORQUE SPECIFICATIONS -- TWIN TURBO

Installation: 

Cable color gray, cylinders 4 to 6.

Fig 2: Identifying Special Tools (11 7 030 & 11 9 150) On Oxygen Control Sensor Cylinders 4 To 6

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check function of DME.