Replacing crankshaft main bearing shells

• Replace crankshaft main bearing shells (1) to (5) (with lubricating groove) in the crankcase.

  Parts: Crankshaft main bearing shells

  NOTE: The axial guide bearing of the crankshaft is installed at bearing position (3).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Make sure the crankshaft main bearing shell (1) is correctly installed with the guide lug in the highlighted area.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Replace the crankshaft main bearing shells (1) to (5) (without lubricating groove) on the crankshaft bearing caps.

  Parts: Crankshaft main bearing shells

  Courtesy of BMW OF NORTH AMERICA, INC.

• Make sure the crankshaft main bearing shell (1) is correctly Installed with the guide lug in the highlighted area.

  Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to INSTALLING THE CRANKSHAFT (B48 TECHNICAL UPDATE 0/1) .
• Refer to CHECKING THE CRANKSHAFT SIDE CLEARANCE .
• Refer to CHECK THE COEFFICIENT OF FRICTION FOR THE CRANKSHAFT .
• Refer to MEASURING PISTON .
• Refer to MEASURING A CYLINDER .
• Refer to INSTALLING ALL PISTONS WITH CONNECTING ROD .
• Refer to INSTALLING THE OIL DEFLECTOR
• Refer to PREPARING THE OIL VACUUM PUMP .
• Refer to INSTALL THE OIL VACUUM PUMP .
• Refer to INSTALLING TIMING CHAIN .
• Refer to INSTALLING THE REAR TIMING CASE COVER .
• Refer to REFITTING ENGINE OIL PAN
• Refer to INSTALLING THE FLYWHEEL .
• Refer to REPLACING FRONT CRANKSHAFT SEAL .
• Refer to INSTALLING THE VIBRATION DAMPER .
• Refer to INSTALLING STARTER MOTOR .
• Refer to INSTALLING THE ACOUSTIC COVER FOR THE OIL SUMP .
• Refer to BLOCK THE CRANKSHAFT IN HE TDC FIRING POSITION OF CYLINDER 1
• Refer to SEAL THE OIL DUCT .
• Refer to CLEAN SEALING SURFACES .
• Refer to REPLACE CYLINDER HEAD GASKET .
• Refer to INSTALLING THE CYLINDER HEAD .
• Refer to ADJUSTING THE CAMSHAFTS WITH THE SPECIAL TOOL .
• Refer to INSTALL EXHAUST CAMSHAFT ADJUSTER .
• Refer to INSTALLING THE INTAKE ADJUSTER .
• Refer to INSTALLING THE VANOS CENTRAL VALVE OF THE INTAKE ADJUSTER .
• Refer to INSTALLING THE VANOS CENTRAL VALVE OF THE EXHAUST CAMSHAFT ADJUSTER .
• Refer to PRE-TENSIONING THE TIMING CHAIN WITH THE SPECIAL TOOL .
• Refer to TIGHTENING THE VANOS CENTRAL VALVE OF THE EXHAUST CAMSHAFT ADJUSTER .
• Refer to TIGHTENING THE VANOS CENTRAL VALVE OF THE INTAKE ADJUSTER .
• Refer to DISASSEMBLING ALL SPECIAL TOOLS
• Refer to INSTALL CHAIN TENSIONER .
• Refer to CHECKING THE TIMINGS OF THE CAMSHAFT
• Refer to INSTALLING THE HOLDER FOR THE THERMOSTAT ON THE TRANSMISSION OIL LINES .
• Refer to INSTALLING THE THERMOSTAT ON THE TRANSMISSION OIL LINES .
• Refer to INSTALLING THE OIL RETURN LINE FOR THE EXHAUST TURBOCHARGER .
• Refer to INSTALL THE COOLANT RETURN LINE FOR THE EXHAUST TURBOCHARGER .
• Refer to INSTALLING COOLANT FEED LINE FOR EXHAUST TURBOCHARGER .
• Refer to INSTALLING CYLINDER HEAD COVER .
• Refer to INSTALLING BOTH ACTUATORS .
• Refer to INSTALLING THE HEAT SHIELD ON THE CYLINDER HEAD
• Refer to PREPARE THE INJECTORS FOR INSTALLATION .
• Refer to INSTALLING THE RAIL WITH INJECTORS .
• Refer to INSTALLING HIGH PRESSURE PUMP .
• Refer to INSTALLING THE HIGH-PRESSURE LINE BETWEEN THE HIGH-PRESSURE PUMP AND THE HIGH-PRESSURE RAIL .
• Refer to INSTALLING ALL SPARK PLUGS .
• Refer to TOPPING UP THE MOTOR OIL .
• Refer to REMOVING THE ENGINE FROM ASSEMBLY JIG
• Refer to INSTALL ENGINE .