Install counterbalance shafts B48 technical update 0/1)
- Vehicle up to production year 07/16
- Mount the gears (1) (2) and (3) in such a way that the marks point vertically
to the sealing surface of the oil pan (to the top).
Mark on the gear (1) on the intake side: Triangle
Mark on gear (2) on exhaust side: two rectangles
Mark on gear (3) on exhaust side: one rectangle
- Vehicle from production year 07/16
- Mount the gears (1) (2) and (3) in such a way that the marks point vertically
to the sealing surface of the oil pan (to the top).
Mark on the gear (1) on the intake side: Triangle
Mark on the gear (2) on the exhaust side: Triangle
Mark on gear (3) on exhaust side: one rectangle
- Replace the gear (1).
Parts: Gear
- Install gearwheel (1).
- Tighten the nut (1) hand-tight.
- Ensure that the gears are not reversed.
The gearwheel (1) is marked with an (A) and must be installed on the exhaust side .
- Replace the gear (1).
Parts: Gear
- Install gearwheel (1).
- Ensure that the gears are not reversed.
As gearwheel (1) is marked with an (E) and must be installed on the intake side .
- Replace the gear (1).
Parts: Gear
- Install gearwheel (1).
- Carefully install the counterbalance shafts (1) against the arrow direction in the crankcase.
The counterbalance shafts (1) must not fall into the bearing positions.
- Slide the special tool 0 493 681 (64 1 020) or push another suitable tool through the gear into the counterbalance shaft.
- Carefully insert the counterbalance shaft (1) into the gear on the intake side.
- Slide the special tool 0 493 681 (64 1 020) or push another suitable tool through the gear into the counterbalance shaft.
- Carefully insert the counterbalance shaft (1) into the gear on the exhaust side.
- Screw the screws (1) into the counterbalance shafts on the left and right.
- Bolts must (1) not be tightened.
The counterbalance shafts are positioned in the next step.
- Rotate the crankshaft to the lower dead center of the first cylinder.
- Mount the special tool 2 288 054
and abut the screws (1).NOTE: The description is for one component only. The procedure is identical for all further components.
- Observe the correct fit of special tool 2 288 054 in the guides (1) of counterbalance shaft (2).
- Where appropriate, turn the crankshaft slightly.
- Tighten special tool 2 288 054
.TIGHTENING TORQUES SPECIFICATION
Special tool 2 288 054 to crankshaft Tightening torque 20 Nm - Tighten down screws (1).TIGHTENING TORQUES SPECIFICATION
Drive wheel to counterbalance shafts Screw
Replace screws.1. Tightening torque 20 Nm 2. Angle of rotation 180° - Refer to Unscrew the bolts (1) and remove the special tool 2 288 054
.
- Move the gear (1) in the arrow direction up against the gear (2).
- Tighten nut (3).TIGHTENING TORQUES SPECIFICATION
Idler gear to crankcase M12x1.5 1. Tightening torque 10 Nm 2. Angle of rotation 45° - Replace the sealing cap (1).
Parts: Sealing cap
- Make sure the O-rings of the sealing cap (1) are fitted correctly.
- Mount both sealing caps (1).
Follow-up work
- Refer to INSTALLING THE OIL DEFLECTOR .
- Refer to INSTALLING THE OIL VACUUM PUMP .
- Refer to INSTALLING THE REAR TIMING CASE COVER .
- Refer to INSTALLING THE OIL PAN .
- Refer to INSTALLING THE FLYWHEEL .
- Refer to INSTALLING THE VIBRATION DAMPER .
- 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 SEALING THE OIL DUCT .
- Refer to CLEANING SEALING SURFACES .
- Refer to REPLACING CYLINDER HEAD GASKET .
- Refer to INSTALLING THE CYLINDER HEAD .
- Refer to ADJUSTING THE CAMSHAFTS WITH THE SPECIAL TOOL .
- Refer to INSTALLING 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 INSTALLING CHAIN TENSIONER .
- Refer to CHECKING THE TIMINGS OF THE CAMSHAFT .
- Refer to INSTALLING THE OIL RETURN LINE FOR THE EXHAUST TURBOCHARGER .
- Refer to INSTALLING 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 PREPARING 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 INSTALLING 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 INSTALLING ENGINE .













