Removing both exhaust turbochargers for cylinders 1 to 6

Preliminary work 

• Refer to BRINGING FRONT COMPARTMENT LID IN THE SERVICE POSITION .
• Refer to REMOVING SUSPENSION STRUT BRACE .
• Refer to REMOVING THE ACOUSTIC COVER .
• Refer to REMOVING THE FRONT-END STRUT .
• Refer to REMOVING THE CLEAN AIR PIPE FOR CYLINDERS 1 TO 3 .
• Refer to REMOVING SEAL FOR FRONT HOOD .
• Refer to REMOVING THE COVER FOR THE CENTER ENGINE COMPARTMENT .
• Refer to REMOVING UPPER CROSS CONNECTION .
• Refer to REMOVING THE REAR TOP CROSS CONNECTION .
• Refer to REMOVING THE RIGHT INTAKE FILTER HOUSING (FRONT-END STRUT REMOVED) .
• Refer to REMOVING CLEAN AIR PIPE CYLINDERS 4-6 .
• Refer to PARTIALLY REMOVING THE COOLANT EXPANSION TANK OF THE HIGH-TEMPERATURE COOLANT CIRCUIT .
• Refer to REMOVING THE HOLDER OF THE POSITIVE BATTERY CABLE .
• Refer to REMOVING LAMBDA OXYGEN SENSOR FOR THE CYLINDERS 1 TO 3 .
• Refer to REMOVING LAMBDA OXYGEN SENSOR FOR THE CYLINDERS 4 TO 6 .
• Refer to REMOVING THE OIL FILLER CAP .
• Refer to REMOVING THE FRONT SPOILER .
• Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
• Refer to REMOVING THE LEFT AND RIGHT FRONT UNDERSHIELD .
• Refer to REMOVING THRUST FIELD .
• Refer to REMOVING THE RIGHT HAND FRONT BOTTOM SIDE COVER .
• Refer to RELEASING THE OIL DRAIN PLUG .
• Refer to TIGHTENING THE OIL DRAIN PLUG .
• Refer to DRAINING THE COOLANT FOR THE HIGH-TEMPERATURE COOLANT CIRCUIT .
• Refer to CONNECTING THE COOLANT LINE TO THE RADIATOR .
• Refer to REMOVING EXHAUST SYSTEM .
• Refer to REMOVING INTERMEDIATE PIPE .
• Refer to REMOVING THE OXYGEN SENSOR MONITOR FOR THE CYLINDERS 1 TO 3 .
• Refer to REMOVING THE OXYGEN SENSOR MONITOR FOR THE CYLINDERS 4 TO 6 .
• Refer to REMOVING BOTH CATALYTIC CONVERTERS .
• Refer to LOOSENING THE ANTI-ROLL BAR LINK ON THE LEFT AND RIGHT FROM THE ANTI-ROLL BAR .
• Refer to REMOVING THE ANTI-ROLL BAR .
• Refer to REMOVING THE FAN COWL .
• Refer to REMOVING THE COOLANT FEED LINE PART 2 BETWEEN THE AUXILIARY COOLANT PUMP AND EXHAUST TURBOCHARGER .
• Refer to PARTIALLY RELEASING THE AUXILIARY COOLANT PUMP FOR THE EXHAUST TURBOCHARGER .
• Refer to REMOVING THE COOLANT RETURNING LINE BETWEEN THE EXHAUST TURBOCHARGER AND THERMOSTAT .
• Refer to REMOVING THE CHARGE AIR DUCT FOR CYLINDERS 1-3 .
• Refer to REMOVING THE EXHAUST TURBOCHARGER HEAT SHIELD FOR CYLINDERS 1 TO 3 .
• Refer to REMOVING THE OIL RETURN LINE FOR THE CYLINDERS 4 TO 6 .
• Refer to REMOVING THE OIL RETURN LINE FOR CYLINDERS 1 TO 3 .

Both exhaust turbochargers for cylinders 1 to 6 

Courtesy of BMW OF NORTH AMERICA, INC.

□ Remove the exhaust turbocharger for the cylinders 4 to 6 

Exhaust turbocharger for the cylinders 4 to 6 

Courtesy of BMW OF NORTH AMERICA, INC.

• Loosen screw (1)
• Guide out the oil feed line (2) for cylinders 4 to 6 and set aside
• Catch and dispose of emerging motor oil

  Courtesy of BMW OF NORTH AMERICA, INC.

• Loosen screws (1)
• Feed out and remove the heat shield (2)

  Courtesy of BMW OF NORTH AMERICA, INC.

• Unlock lock (1)
• Let the lock (1) engage at the holder (arrow)

  Courtesy of BMW OF NORTH AMERICA, INC.

• Loosen screw (1)
• Unlock and loosen lock (2)
• Unlock and release the charge air duct (3) for cylinders 4 to 6
• Guide out the charge air pipe (4) for cylinders 4 to 6 and remove

  Courtesy of BMW OF NORTH AMERICA, INC.

  NOTE: TECHNICAL INFORMATION 
  Exhaust manifold/exhaust turbocharger is not bolted to the underside, but clamped instead. When removing/replacing the exhaust manifold/exhaust turbocharger, the trim strip remains screwed on
• Protect the exhaust turbocharger from falling
• Release the nuts in the sequence (4) to (1)
• Guide out and remove the reinforcement plate (A)

  Courtesy of BMW OF NORTH AMERICA, INC.

  CAUTION: Heavy component 
  Heavy components can lead to injury or damage 

  • Remove and install heavy components with the aid of another person/other persons

  Courtesy of BMW OF NORTH AMERICA, INC.

• Guide the exhaust turbocharger (1) out of the trim strip (2) and remove
• Guide the seal (1) out of the marked  area and remove

Courtesy of BMW OF NORTH AMERICA, INC.

□ Remove the exhaust turbocharger for cylinders 1 to 3 

Exhaust turbocharger for the cylinders 1 to 3 

Courtesy of BMW OF NORTH AMERICA, INC.

• Release the screw (1)
• Guide out the oil feed line (2) for cylinders 1 to 3 and set it to the side

  Catch and dispose of emerging engine oil

  Courtesy of BMW OF NORTH AMERICA, INC.

• Unlock plug connection (1) and disconnect
• Unlock plug connection (2) and disconnect
• Loosen screw (3)
• Loosen screws (4)
• Feed out the connecting bracket (5) for cylinders 1 to 3 and remove it

  Courtesy of BMW OF NORTH AMERICA, INC.

  NOTE: TECHNICAL INFORMATION 
  Exhaust manifold/exhaust turbocharger is not bolted to the underside, but clamped instead. When removing/replacing the exhaust manifold/exhaust turbocharger, the trim strip remains screwed on
• Protect the exhaust turbocharger from falling
• Loosen the nuts in the sequence (4) to (1)
• Guide out and remove the reinforcement plate (A)

  Courtesy of BMW OF NORTH AMERICA, INC.

  CAUTION: Heavy component 
  Heavy components can lead to injury or damage 

  • Remove and install heavy components with the aid of another person/other persons

  Courtesy of BMW OF NORTH AMERICA, INC.

• Guide the exhaust turbocharger (1) out of the trim strip (2) and remove
• Guide the seal (1) out of the marked  area and remove

Courtesy of BMW OF NORTH AMERICA, INC.