11 65 022 Removing and Installing/Replace Exhaust Turbocharger For Cylinders 1-3

11 65 022 - Removing and installing/replacing exhaust-gas turbocharger for cylinders 1-3 (N54)





Necessary preliminary tasks:
- Remove fan cowl Service and Repair with electric fan
- Draining coolant Service and Repair
- Remove front right wheel arch trim 51 71 038 Removing and Installing/Replacing Front Left or Right Wheel Arch Cover (Front Section)
- Remove both catalytic exhaust-gas converters
- Remove vacuum unit (wastegate valve) 11 65 ... Removing and Installing Vacuum Unit (Wastegate Valve) For Cylinders 4-6, cylinders 4-6
- Remove right charge-air duct
- Remove air duct 13 71 160 Removing and Installing/Replacing Front Air Duct, cylinders 1-3
- Remove coolant thermostat Removing and Installing/Replacing Coolant Thermostat
- Remove coolant pump





Release screws (2).
Tightening torque 11 42 7AZ Mechanical Specifications.

Installation:
Replace seal.

Release screw (1).

Tightening torque 11 42 8AZ Mechanical Specifications.
Remove oil return line (3) in direction of arrow.

Installation:
Replace O-ring.





Important!
Where necessary, to release the coolant feed lines (3 and 4), do not place pliers on the pipes.
Risk of damage!

Release screws (1 and 2).

Tightening torque 11 53 10AZ Mechanical Specifications.
If necessary, release coolant feed lines (3 and 4) with suitable pliers at connection.

Installation:
Replace O-rings.





Note:
For purposes of clarity, the graphic shows the released coolant feed lines removed.

Release screws (1).

Tightening torque 11 53 3AZ Mechanical Specifications.
Remove feed line (2).

Installation:
Replace seal.





Important!
Where necessary, to release the coolant feed and return lines (1 and 3), do not place pliers on the pipes.
Risk of damage!

Release screw (2).

Tightening torque 11 53 8AZ Mechanical Specifications.
If necessary, release coolant feed line (1) with suitable pliers at connection.

Installation:
Replace O-rings.

If necessary, release coolant return line (3) with suitable pliers at front connection.

Release screw (4).
Tightening torque 11 53 9AZ Mechanical Specifications.
If necessary, release coolant return line (3) with suitable pliers at rear connection and remove.

Installation:
Replace O-rings.





Release screws (1).
Tightening torque 11 65 2AZ 11 65 Turbocharger and Control.
Remove retaining plate (2).
Release screws (3).
Tightening torque 11 65 2AZ 11 65 Turbocharger and Control.





Important!
Carefully swing out heat shield (2) in direction of arrow.
Risk of damage!

Remove heat shield (2) in direction of arrow.

Note:
Coolant feed line (1) can be removed with heat shield (2).





Release screws (1).
Tightening torque 11 65 3AZ 11 65 Turbocharger and Control.
Set holder (2) down on cylinder head cover.





Release screw (1).
Tightening torque 11 42 4AZ Mechanical Specifications.
Release oil feed line (2) in direction of arrow.

Installation:
Replace O-ring.





Release screw (1).
Tightening torque 11 42 5AZ Mechanical Specifications.

Important!
Where necessary, to release the oil feed line (2), do not place pliers on the pipe.
Risk of damage!

If necessary, release oil feed line (2) with suitable pliers at connection and remove.

Installation:
Replace O-rings.





Detach vacuum hose (3) from vacuum unit (wastegate valve).
Unscrew nuts (2).
Tightening torque 11 65 1AZ 11 65 Turbocharger and Control.
Remove turbocharger (1) towards top.

Important!
Do not misuse linkage of vacuum unit (wastegate valve) to transport turbocharger (1)!
Risk of damage!





Installation:
Replace graphite sealing rings (1).





Assemble engine.
Clear fault memory in DME control unit.
Carry out BMW leak test Component Tests and General Diagnostics for intake system.
Observe DME control unit instructions.