Replace all connecting rod bearing shells

CAUTION: Component with heavy weight.
Injury hazard!

Note component's center of gravity.
Support component using a jack.
Secure component against falling off the jack.

CAUTION: On releasing high pressure line, fuel may emerge at high speed.
Injury hazard!

Wear suitable personal protective equipment.
Before performing any installation work, allow cooling system to cool down to less than 40°C.
Note warnings on cylinder head cover.

NOTE: TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.

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 REMOVING THE OIL FILLER CAP .
Refer to RELEASING THE OIL DRAIN PLUG .
Refer to TIGHTENING THE OIL DRAIN PLUG .
Refer to REMOVING ACOUSTIC COVER AT REAR .
Refer to REMOVING ALL IGNITION COILS
Refer to REMOVING ALL SPARK PLUGS .
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 REMOVE THE ACOUSTIC COVER OF THE OIL SUMP .
Refer to REMOVING STARTER MOTOR
Refer to REMOVE FRONT AXLE DIFFERENTIAL .
Refer to REMOVE BEARING BRACKET .
Refer to REMOVE OIL PAN
Refer to REMOVE THE OIL VACUUM PUMP .
Refer to REMOVING THE OIL DEFLECTOR
Refer to REMOVING ALL PISTONS WITH CONNECTING ROD .

NOTE: RISK OF DAMAGE
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.

NOTE: TECHNICAL INFORMATION
Piston, piston pin, connecting rod and connecting rod bearing shells are matched to each other and balanced.
Always install the pistons, piston pins, connecting rods and connecting rod bearing shells in the cylinder from which they were removed.

Feed the connecting rod bearing shell (2) out of the connecting rod (1) and remove it.

Courtesy of BMW OF NORTH AMERICA, INC.
Feed the connecting rod bearing shell (2) out of the connecting rod bearing cap (1) and remove it.

Courtesy of BMW OF NORTH AMERICA, INC.
Note the different equipment specifications of the connecting rod bearing shells (1) and (2).

Courtesy of BMW OF NORTH AMERICA, INC.
To avoid incorrect assembly: Observe marks (arrows).
Connecting rod bearing shell (1) and the connecting rod bearing shell (2) each have a fuse to prevent incorrect assembly.

Courtesy of BMW OF NORTH AMERICA, INC.
To avoid incorrect assembly: Observe marks (arrows).
Connecting rod bearing cap (2) and the connecting rod (1) each have a fuse to prevent incorrect assembly.

Courtesy of BMW OF NORTH AMERICA, INC.
Replace the connecting rod bearing shell (2) and insert it in the connecting rod (1).
Parts: Connecting rod bearing shell
Oil the connecting rod bearing shell (2).

Courtesy of BMW OF NORTH AMERICA, INC.
Replace the connecting rod bearing shell (2) and insert in the connecting rod bearing cap (1).
Parts: Connecting rod bearing shell
Oil the connecting rod bearing shell (2).

Courtesy of BMW OF NORTH AMERICA, INC.
Vacuum the crack surfaces (1) with a conventional vacuum cleaner (2).
The crack surfaces (1 ) must not be blown off with compressed air.

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work

Refer to MEASURING ALL PISTONS .
Refer to MEASURING A CYLINDER .
Refer to INSTALLING ALL PISTONS WITH CONNECTING ROD .
Refer to INSTALLING THE OIL DEFLECTOR
Refer to INSTALL THE OIL VACUUM PUMP .
Refer to REFITTING ENGINE OIL PAN
Refer to INSTALLING STARTER MOTOR
Refer to INSTALL THE ACOUSTIC COVER FOR THE OIL SUMP .
Refer to REPLACING THE O-RING ON THE BEARING BRACKET .
Refer to INSTALL BEARING BRACKET
Refer to INSTALL FRONT AXLE DIFFERENTIAL
Refer to SEAL THE OIL DUCT .
Refer to CLEAN SEALING SURFACES .
Refer to INSTALLING THE CYLINDER HEAD GASKET .
Refer to BLOCKING THE CRANKSHAFT IN THE TDC FIRING POSITION OF CYLINDER 1 .
Refer to INSTALLING THE CYLINDER HEAD .
Refer to ADJUSTING THE CAMSHAFTS WITH THE SPECIAL TOOL .
Refer to INSTALLING THE INTAKE ADJUSTER .
Refer to INSTALLING THE VANOS CENTRAL VALVE OF THE INTAKE ADJUSTER .
Refer to INSTALL EXHAUST CAMSHAFT 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 COOLANT LINE BETWEEN THE CYLINDER HEAD AND THE COOLANT PUMP .
Refer to INSTALLING THE OIL RETURN LINE FOR THE EXHAUST TURBOCHARGER .
Refer to INSTALLING CYLINDER HEAD COVER .
Refer to INSTALLING BOTH ACTUATORS .
Refer to PREPARE THE INJECTORS FOR INSTALLATION .
Refer to INSTALLING THE HIGH-PRESSURE RAIL WITH INJECTORS OF THE CYLINDERS 4 TO 6 .
Refer to INSTALLING RAIL WITH INJECTORS OF CYLINDERS 1 TO 3 .
Refer to INSTALLING THE HIGH-PRESSURE LINE BETWEEN THE HIGH-PRESSURE PUMP AND THE HIGH-PRESSURE RAIL .
Refer to INSTALLING HIGH PRESSURE PUMP .
Refer to INSTALLING FUEL DELIVERY LINE .
Refer to INSTALLING ALL SPARK PLUGS .
Refer to INSTALL ALL IGNITION COILS .
Refer to INSTALL CATALYTIC CONVERTER .
Refer to INSTALLING THE OXYGEN SENSOR MONITOR .
Refer to INSTALLING LAMBDA OXYGEN SENSOR .
Refer to INSTALLING THE INTAKE PLENUM .
Refer to INSTALLING THE TANK VENT VALVE .
Refer to INSTALLING ACOUSTIC COVER AT REAR .
Refer to FILLING ENGINE OIL .
Refer to OPENING THE OIL FILLER CAP .
Refer to REMOVING THE ENGINE FROM THE ASSEMBLY JIG .
Refer to MOUNTING THE ENGINE ON THE FRONT AXLE .
Refer to INSTALLING THE COMPLETE FRONT AXLE INCLUDING ENGINE AND TRANSMISSION .