Install both timing chains
- Position the timing chain (1) .
- Position the special tool 2 357 904 on the guide pin (arrow) of the crankshaft and secure it with the bolt (2)
on the crankcase.
- Replace the bearing journals (1)
and (4)
.
Parts : Bearing journal
- Clean all of the screw threads of the bearing journals. Use a thread cutter as needed.
- Mount the sprocket and hand-tighten the screw.
- Position the guide rail (2) .
- Screw in and tighten both bearing journals (1)
.TIGHTENING TORQUE SPECIFICATIONS
Bearing journal of tensioning and guide rail M8 Tightening torque 20 Nm - Position tensioning rail (3) .
- Screw in and tighten the bearing journals (4)
.TIGHTENING TORQUE SPECIFICATIONS
Bearing journal of tensioning and guide rail M8 Tightening torque 20 Nm - Clean sealing surfaces (1)
.
- Install the chain tensioner and tighten the bolts (1)
.TIGHTENING TORQUE SPECIFICATIONS
Chain tensioner to crankcase M6x22 Tightening torque 10 Nm - Secure the chain tensioner piston (3) with the screwdriver (2) .
- Remove special tool 0 491 012 (11 4 120) and slowly remove the screwdriver (2) .
- Replace the screw (1)
.
Parts : Screw
- Tighten down screw (1)
.TIGHTENING TORQUE SPECIFICATIONS
Camshaft wheel with bearing to crankcase M 12x1.5 Tightening torque 108 Nm - Mount the tensioning rail (2) on the bearing journal (3) .
- Attach the timing chain (1)
on the camshaft wheel and position it correctly on the tensioning rail (2)
.
- Mount the drive chain (1)
on the crankshaft.
Follow-up work
- Refer to INSTALLING THE OIL VACUUM PUMP .
- Refer to INSTALLING THE REAR TIMING CASE COVER .
- Refer to REFITTING SUMP .
- Refer to INSTALLING THE FLYWHEEL .
- Refer to SEALING THE OIL DUCT .
- Refer to CLEANING SEALING SURFACES .
- Refer to INSTALLING THE CYLINDER HEAD .
- Refer to ATTACHING THE OIL RETURN LINE FOR THE EXHAUST TURBOCHARGER .
- Refer to BLOCKING THE CRANKSHAFT IN HE TDC FIRING POSITION OF CYLINDER 1 .
- Refer to BLOCKING THE CAMSHAFTS .
- Refer to INSTALLING THE INTAKE ADJUSTER .
- Refer to INSTALLING VANOS CENTRAL VALVE OF THE INTAKE SIDE .
- Refer to INSTALLING EXHAUST CAMSHAFT ADJUSTER .
- Refer to INSTALLING VANOS CENTRAL VALVE OF THE EXHAUST SIDE .
- Refer to PRELOAD TIMING CHAIN .
- Refer to TIGHTENING THE VANOS CENTRAL VALVE .
- Refer to DISASSEMBLING ALL SPECIAL TOOLS .
- Refer to CHECKING CAMSHAFT TIMING .
- Refer to INSTALLING THE THERMOSTAT ON THE TRANSMISSION OIL LINES .
- Refer to INSTALLING THE STARTER MOTOR (ACOUSTIC COVER REMOVED) .
- Refer to INSTALLING THE ACOUSTIC COVER FOR THE OIL SUMP .
- Refer to INSTALLING THE CYLINDER HEAD COVER (ENGINE REMOVED) .
- Refer to INSTALLING BOTH ACTUATORS (ENGINE REMOVED) .
- Refer to PREPARING FOR THE INSTALLATION OF THE HIGH PRESSURE PUMP .
- Refer to INSTALLING HIGH PRESSURE PUMP .
- Refer to PREPARING THE INJECTORS FOR INSTALLATION .
- Refer to INSTALLING INJECTORS .
- Refer to INSTALLING THE HIGH-PRESSURE LINE BETWEEN THE HIGH-PRESSURE PUMP AND THE HIGH-PRESSURE RAIL .
- Refer to INSTALLING THE IGNITION COILS .
- Refer to INSTALLING THE INTAKE PLENUM .
- Refer to INSTALLING THE TANK VENT VALVE .
- Refer to INSTALLING THE OIL FEED LINE FOR THE EXHAUST TURBOCHARGER (ENGINE ENCAPSULATION REMOVED) .
- Refer to INSTALLING FRONT ENGINE ENCAPSULATION .
- Refer to INSTALLING THE COOLANT FEED LINE FOR THE EXHAUST TURBOCHARGER (COOLANT RETURNING LINE REMOVED) .
- Refer to INSTALLING THE COOLANT RETURNING LINE FOR THE EXHAUST TURBOCHARGER (AUXILIARY COOLANT PUMP IS REMOVED) .
- Refer to INSTALLING AUXILIARY COOLANT PUMP FOR THE EXHAUST TURBOCHARGER .
- Refer to TOPPING UP THE MOTOR OIL .
- Refer to INSTALLING BEARING BRACKET .
- Refer to INSTALLING FRONT AXLE DIFFERENTIAL .
- Refer to REMOVING ENGINE FROM ASSEMBLY STAND .
- Refer to INSTALLING THE RIGHT ENGINE SUPPORT BRACKET (PHEV) .