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Home >> BMW >> 2021 >> X4 M40i >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Turbocharger -- Repair (G02) >> 11 65 Turbocharger >> 11 65 020 Removing and installing/replacing turbocharger (X4 M40i 2019-2021) >> Installing turbocharger

Installing turbocharger

G12729140Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: TECHNICAL INFORMATION 
Do not damage the thermal compensating elements. Disassembly and installation including intermediate storage of the turbocharger is only permitted with mounted special tool 2 466 919.
G12729136Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Exhaust manifold to cylinder head 
Flange nut M7 Replace flange nuts
1. Joining torque 
10 Nm
2. Joining torque  10 Nm
3. Joining torque  16 Nm
4. Joining torque  16 Nm
5. Joining torque  16 Nm
Fig 1: Exhaust Manifold Nuts Tightening Sequence
G12728310Courtesy of BMW OF NORTH AMERICA, INC.
G12728307Courtesy of BMW OF NORTH AMERICA, INC.
G12728305Courtesy of BMW OF NORTH AMERICA, INC.
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).
G12701398Courtesy of BMW OF NORTH AMERICA, INC.
CONSUMABLE SPECIFICATION

Turbocharger additive, gasoline MSP  17 ml, Tube 83192457276
TIGHTENING TORQUES SPECIFICATION

Turbocharger support to crankcase 
M8 x 20
Replace screws.
Tightening torque  19 Nm
G12729127Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Turbocharger to support 
M8 x 25
Replace screw.
Tightening torque  19 Nm
TIGHTENING TORQUES SPECIFICATION

Oil feed line to crankcase 
M6 x 12 Tightening torque  8 Nm
G12729128Courtesy of BMW OF NORTH AMERICA, INC.
G12729125Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work