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Home >> BMW >> 2021 >> X3 xDrive30i >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Crankshaft, Flywheel, Engine Vibration Damper, Connecting Rod Bearings -- Repair (G01) >> 11 21 Crankshaft With Bearing >> 11 21 500 Replace crankshaft (engine removed) (X3 M40i, 2018-2019) >> Installing the crankshaft

Installing the crankshaft

NOTE: TECHNICAL INFORMATION 
Engine damage caused by incorrectly installed bearing shells and bearing brackets.
If the bearing shells and bearing brackets are installed incorrectly, then engine damage can occur.
  • Always install all bearing shells and bearing brackets in the same position from which they were removed.
CAUTION: Heavy component.
Heavy components can lead to injury or damage. 
  • Remove and install heavy components with the aid of another person/other persons.
G12728448Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: TECHNICAL INFORMATION 
The crankshaft bearing cap, main bearing shell and guide bearing shell are aligned with each other.
Always install the crankshaft bearing cap, main bearing shells and guide bearing shells in the cylinder from which they were removed.
TIGHTEN TORQUES SPECIFICATION

Main bearing cap to crankcase
M10x85
Replace screws.
1. Joining torque  25 Nm
3. Angle of rotation  60°
4. Angle of rotation  60°
Fig 1: Crankshaft Main Bearing Caps Screws/Bolts Tightening Sequence
G12728447Courtesy of BMW OF NORTH AMERICA, INC.