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 REMOVING ENGINE .
Refer to INSTALLING THE ENGINE ON THE ASSEMBLY STAND
Refer to RELEASING THE OIL DRAIN PLUG .
Refer to TIGHTENING THE OIL DRAIN PLUG .
Refer to REMOVING ALL SPARK PLUGS .
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 .
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 REMOVE THE HEAT SHIELD AT THE CYLINDER HEAD
Refer to REMOVING THE OIL RETURN LINE FOR THE EXHAUST TURBOCHARGER .
Refer to REMOVE THE COOLANT RETURN LINE FOR THE EXHAUST TURBOCHARGER .
Refer to REMOVE THE COOLANT FEED LINE FOR THE EXHAUST GAS TURBOCHARGER .
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 FLYWHEEL .
Refer to REMOVING THE ACOUSTIC COVER OF THE OIL SUMP .
Refer to REMOVE OIL SUMP .
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.

Courtesy of BMW OF NORTH AMERICA, INC.

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

Courtesy of BMW OF NORTH AMERICA, INC.

Courtesy of BMW OF NORTH AMERICA, INC.

Note the different equipment specifications of the connecting rod bearing shells (1) and (2).

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.

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).

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).

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 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 THE OIL PAN .
Refer to INSTALLING THE FLYWHEEL .
Refer to INSTALLING THE ACOUSTIC COVER FOR THE OIL PAN .
Refer to BLOCKING THE CRANKSHAFT IN THE 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 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 INSTALL INTAKE PLENUM .
Refer to INSTALLING THE TANK VENT VALVE .
Refer to TOPPING UP THE MOTOR OIL .
Refer to REMOVING THE ENGINE FROM ASSEMBLY JIG
Refer to INSTALL ENGINE .