Determining the classification of the crankshaft main bearing shell

Preliminary work 

• Refer to REMOVE THE FRONT AXLE COMPLETELY WITH THE ENGINE AND TRANSMISSION .
• Refer to REMOVING THE ENGINE FROM THE FRONT AXLE .
• Refer to INSTALLING THE ENGINE ON THE ASSEMBLY JIG .
• Refer to RELEASING THE OIL FILTER COVER (540i 2017-2020) , or REMOVING THE OIL FILLER CAP (540i 2021-2022) .
• Refer to RELEASING THE OIL DRAIN PLUG (540i 2017-2020) , or RELEASING THE OIL DRAIN PLUG (540i 2021-2022) .
• Refer to TIGHTENING THE OIL DRAIN PLUG (540i 2017-2020) , or TIGHTENING THE OIL DRAIN PLUG (540i 2021-2022) .
• Refer to REMOVING ACOUSTIC COVER AT REAR .
• Refer to REMOVING ALL IGNITION COILS
• Refer to REPLACE SPARK PLUGS (540i 2017-2020) , or REMOVING ALL SPARK PLUGS (540i 2021-2022) .
• Refer to REMOVING FUEL DELIVERY LINE .
• Refer to REMOVE THE HIGH PRESSURE LINE BETWEEN THE HIGH PRESSURE PUMP AND THE RAIL .
• Refer to REMOVE HIGH PRESSURE PUMP .
• Refer to REMOVING THE RAIL WITH INJECTORS OF CYLINDERS 1 TO 3 .
• Refer to REMOVING THE RAIL WITH INJECTORS OF CYLINDERS 4 TO 6 .
• Refer to REMOVING BOTH ACTUATORS .
• Refer to REMOVING THE CYLINDER HEAD COVER .
• Refer to REMOVE TANK VENT VALVE .
• Refer to REMOVING THE INTAKE PLENUM .
• Refer to REMOVING THE LAMBDA OXYGEN SENSOR .
• Refer to REMOVING THE OXYGEN SENSOR MONITOR .
• Refer to REMOVE CATALYTIC CONVERTER .
• Refer to REMOVING THE OIL RETURN LINE FOR THE EXHAUST TURBOCHARGER .
• Refer to REMOVE THE COOLANT LINE BETWEEN THE COOLANT PUMP AND CYLINDER HEAD .
• Refer to BLOCKING ENGINE IN TDC FIRING POSITION .
• Refer to REMOVING CHAIN TENSIONER .
• Refer to RELEASING THE VANOS CENTRAL VALVE OF THE INTAKE ADJUSTER .
• Refer to RELEASING VANOS CENTRAL VALVE OF THE EXHAUST CAMSHAFT ADJUSTER .
• Refer to REMOVING THE VANOS CENTRAL VALVE OF THE INTAKE ADJUSTER .
• Refer to REMOVING THE VANOS CENTRAL VALVE OF THE EXHAUST CAMSHAFT ADJUSTER .
• Refer to REMOVING INTAKE ADJUSTER .
• Refer to REMOVE EXHAUST CAMSHAFT ADJUSTER .
• Refer to REMOVE THE TEST GAUGES FOR SECURING THE CAMSHAFTS .
• Refer to REMOVING THE CYLINDER HEAD .
• Refer to REMOVING THE CYLINDER HEAD GASKET .
• Refer to REMOVING THE DRIVE BELT FOR THE STARTER MOTOR GENERATOR .
• Refer to REMOVE THE ACOUSTIC COVER OF THE OIL SUMP .
• Refer to REMOVING STARTER MOTOR
• Refer to REMOVING THE VIBRATION DAMPER .
• Refer to REMOVING FLYWHEEL .
• Refer to REMOVE OIL SUMP .
• Refer to REMOVE OIL VACUUM PUMP .
• Refer to REMOVING THE OIL DEFLECTOR
• Refer to REMOVING ALL PISTONS WITH CONNECTING ROD .
• Refer to REMOVING REAR TIMING CASE COVER .
• Refer to REMOVING TIMING CHAIN .
• Refer to REMOVING CRANKSHAFT .

• Read off the code letters on the crankcase. 

  K = Clutch side

  Item numbers (7) to (1) describe the bearing seats 7 to 1. The code number is located on each of the crankshaft bearing caps.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Read off the code letters on the crankshaft  .

K = Clutch side

Item numbers (1) to (7) describe the bearing seats 1 to 7. The code number is located on each of the crankshaft bearing caps.

Courtesy of BMW OF NORTH AMERICA, INC.

• Enter the code letters of the crankcase  and the code letters of the crankshaft  .

	Code letter  on the crankcase	Key performance indicator  on the crankshaft
Bearing seat 1
Bearing seat 2
Bearing seat 3
Bearing seat 4
Bearing seat 5
Bearing seat 6
Bearing seat 7

Check 

Result

» All code letters are to be found in the table.

Measure

• Determine the classification of the main guide bearing shells based on further information.

11 21... Table for the classification of main bearing shells 1, 2, 3, 5, 6 (B58TU1)

11 21... Table for the classification of guide bearing shell 4 (B58TU1)

11 21... Table for the classification of main bearing shell 7 (B58TU1)