11 65 030 Removing and installing/replacing exhaust turbocharger, left, cylinders 5-8 (N63) (X6 xDrive 50i)

Necessary preliminary work: 

• Remove CLEANING AIR PIPE .
• Remove both catalytic converters. Refer to 18 32 050 REMOVING AND INSTALLING/REPLACING CATALYTIC CONVERTERS FOR CYLINDERS 1 - 4 (N63) REP-REP-RAF1518N63O1-1832050 - V.4 (X6 XDRIVE 50I) and 18 32 060 REMOVING AND INSTALLING/REPLACING CATALYTIC CONVERTERS FOR CYLINDERS 5-8 (N63 B40/B44 O 1) REP-REP-RAF1518N63O1-1832060 - V.4 (X6 XDRIVE 50I) .

Pull off vacuum line (1) on vacuum unit.

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Tightening torque 11 42 5AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Screw type	Matching socket wrench
Hexagon screw (3)	Standard socket wrench (1)
Multi-tooth screw (4)	Multi-tooth socket wrench (2)

Courtesy of BMW OF NORTH AMERICA, INC.

Release banjo bolt (1).

Tightening torque 11 42 4AZ .

Lay engine oil pipe from turbocharger to one side.

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Replace screw (1).

Parts:  Screw

Replace sealing rings (2).

Parts:  Sealing ring

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Tightening torque 11 53 3AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Release banjo bolt (1).

Tightening torque 11 53 2AZ .

Set the coolant return line aside.

Installation note: 

Replace all sealing rings.

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Tightening torque: 11 53 3AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Release banjo bolt (1).

Tightening torque: 11 53 2AZ .

Installation note: 

Coolant feed line (2) can be left in engine compartment and does not have to be removed.

Replace all sealing rings  .

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (4) with a suitable tool.

Tightening torque 11 42 6AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Open V-band clamp (2).

Remove turbocharger with oil return line in upward direction.

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screws (2).

Remove oil return line (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Replace the oil return line (3).

Parts:  Oil return line

Replace gasket (1).

Parts:  Gasket

Replace screws.

Parts:  Screws

Position screw (2) in the oil return line.

Slide seal (1) on screw (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Position oil return line (1).

To guarantee correct tightening of screws, a second person is required!

Tighten screw (2) with electronic torque wrench with turning angle display.

Tightening torque 11 42 8AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

The thermal length compensation (see arrows) on the oil return line (1) must not be mechanically deformed.

Installation note: 

Coat the end of the oil return line with engine oil.

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Replace O-rings on oil return cover (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Replace gasket (1) on exhaust manifold.

Installation note: 

Check securing device on exhaust manifold.

Courtesy of BMW OF NORTH AMERICA, INC.

Position turbocharger with oil return line on exhaust manifold.

Position V-band clamp (2).

Insert screw (1).

Tightening torque 11 65 1AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

The ends of the V-band clamp must rest parallel to each other.

Tightening torque 11 65 1AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Screw connection of V-band clamp is too loose: 

If you can see a gap between the ends of the V-band clamps, release and then repeat the screw connection.

Tightening torque 11 65 1AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Screw connection of V-band clamp is too tight: 

If the ends of the V-band clamp are positioned under each other, release and then repeat the screw connection.

Tightening torque 11 65 1AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check VACUUM CONNECTIONS .

Observe BMW diagnosis instructions.

1. Complete vehicle
2. Power train
3. Engine electrical system
4. Air supply
5. Charging pressure control