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Home >> BMW >> 2022 >> X4 M Base >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Turbocharger -- Repair (F98) >> 11 65 Turbocharger >> 11 65 022 Removing and installing/replacing turbocharger (for cylinder 1-3) >> Insert the turbocharger for the cylinders 1 to 3

Insert the turbocharger for the cylinders 1 to 3

NOTE: RISK OF DAMAGE 
Damage of the electric wastegate valve controller. 
Excessive force when removing and installing a jammed turbocharger may damage the electric wastegate valve controller. 
  • Do not pull on the electrical wastegate valve controller or on the coupling rod.
  • Apply force only at the turbine housing and exhaust manifold.
  • Do not pull on the compressor housing.

Check 

NOTE: TECHNICAL INFORMATION 
When replacing the stud bolts, they must be coated with screw locking agent (Loctite 270).
G14926987Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: RISK OF DAMAGE 
Damage to the surface. 
The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage. 
  • Do not use any metal-cutting tools.
G14926988Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: RISK OF DAMAGE 
Damage to the surface. 
The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage. 
  • Do not use any metal-cutting tools.
G14926985Courtesy 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.
NOTE: TECHNICAL INFORMATION 
Note the installation position of the component. The component can be installed in various installation positions.
Fig 1: Turbocharger Nuts Tightening Sequence
G14926983Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: TECHNICAL INFORMATION 
When assembling, it is essential to observe screwing sequences and tightening torques.
Failure to comply with the regulations can lead to leaks and damage.
TIGHTENING TORQUES SPECIFICATION

Turbocharger to cylinder head
M7
Replace nuts.
Observe tightening sequence!
1. Joining torque  10 Nm
2. tightening torque  10 Nm
3. Joining torque  16 Nm
4. tightening torque  16 Nm
5. Tightening torque  16 Nm
NOTE: RISK OF DAMAGE 
Dry running due to insufficient initial filling of the turbocharger. 
Damage to the turbocharger. 
  • Be sure to do the initial filling when replacing the turbocharger.
  • Fill the turbocharger with the matching additive (see applicable BMW parts catalogue).
G14926995Courtesy of BMW OF NORTH AMERICA, INC.
CONSUMABLE SPECIFICATION

Additive for turbocharger  17 ml, Tube 83195B305D6
TIGHTENING TORQUES SPECIFICATION

Oil feed line for turbocharger to crankcase
M6 x 12
Replace sealing ring.
tightening torque  8 Nm
G14926981Courtesy of BMW OF NORTH AMERICA, INC.
G14926999Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Connecting brackets on turbocharger
M6 tightening torque  8 Nm
G14926982Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Connecting brackets on turbocharger
M6 tightening torque  8 Nm

Follow-up work