Installing both exhaust turbochargers
WARNING:
Hot surfaces.
Risk of burning!
Risk of burning!
- Perform all work only on components that have cooled down.
CAUTION:
Heavy component.
Heavy components can lead to injury or damage.
Heavy components can lead to injury or damage.
- Remove and install heavy components with the aid of another person/other persons.
NOTE:
RISK OF DAMAGE
Contaminant or foreign body.
Contamination can result in malfunctions, loss of function or leaks.
Contaminant or foreign body.
Contamination can result in malfunctions, loss of function or leaks.
- Adhere to the utmost cleanliness.
- Protect components from contamination e.g. by covering.
- Close off line connections with seal plugs.
NOTE:
TECHNICAL INFORMATION
The sealing surfaces must be free of oil, grease and cleaning agents.
The sealing surfaces must be free of oil, grease and cleaning agents.
Prepare for the installation of the exhaust turbocharger
- Check the oil feed lines and oil return lines for contamination or obstruction, clean or replace if necessary.
- If the oil feed lines or oil return lines are heavily contaminated, it is recommended that the engine oil and oil filter are changed.
- If installed: Check the coolant feed lines and coolant return lines for the exhaust turbocharger for contamination or obstruction and clean or replace as needed.
- Check the screw connections and plug connections of all lines for accuracy.
- Check air cleaner for contamination and clean or replace as needed.
- Check correct functioning of crankcase ventilation.
- Replace all gaskets.
Parts: Seals
- Replace the seal (1).
Parts: Seal
- Check the pin (arrow) for damage, replace exhaust manifold if necessary.
- Make sure that the O-ring (1) does not fall into the oil duct in the engine block.
- Replace O-ring (1).
Parts: O-ring
If the O-ring (1) cannot be disassembled, the oil return lid must be disassembled.
- Coat O-ring (1) with engine oil.ENGINE OIL DESCRIPTION
Technical suitable engine oils for BMW Group engines - Loosen screws (2).
- Remove the oil return line (1).
- Ensure that the sealing surfaces in the area of the oil return line are planar and free from oil and grease.
- Replace oil return line (3) after each disassembly of the exhaust turbocharger.
Parts: Oil return line
- Replace the seal (1).
Parts: Seal
- Replace screws (2).
Parts: Screws
- Position screws (2) in oil return line (3).
- Position the seal (1) on the screws (2).
- Position the oil return line (1).
- Screws (2) must be tightened with the aid of an support person.TIGHTENING TORQUE SPECIFICATIONS
Oil return line at the exhaust turbocharger M6x16
Replace screws.Joining torque 5 Nm Angle of rotation 60° - Feed in and install the exhaust turbocharger (2) at right with the coolant lines and oil return line.
- During installation of the right exhaust turbocharger (2), make sure that the oil return line is correctly positioned in the oil return cover.
- Make sure the oil feed line (1) is positioned correctly.
- Fasten the wiring harness mounting (1) to the holder (2).
- Insert the holder (2).
- Tighten down screws (1).TIGHTENING TORQUE SPECIFICATIONS
Holder of sensor system M6x16 screw tightening torque 8 Nm - Replace the V-clip (2).
Parts: V-band clamp
- Position V-clip (2).
- Tighten down screw (1).TIGHTENING TORQUE SPECIFICATIONS
Exhaust turbocharger to exhaust manifold V-band clamp
Replace V-band clamp.Tightening torque 20 Nm - Tighten the screw (1) on the oil return pipe (2).TIGHTENING TORQUE SPECIFICATIONS
Oil return line to oil return cover M6 tightening torque 10 Nm - Connect connectors (1) and lock.
The connector (1) must engage audibly.
- Replace sealing ring (1) of the coolant line (2).
Parts: Sealing ring
- Connect coolant lines (4).
- Connect coolant lines (3).
- Tighten down screws (2).TIGHTENING TORQUE SPECIFICATIONS
Coolant line from exhaust turbocharger to bracket M6x30 tightening torque 8 Nm - Remove the lint-free rag (1).
- Connect connectors (1) and lock.
- Replace the screw (1).
Parts: Screw
- Replace the sealing ring or sealing rings (2).
Parts: Sealing ring or sealing rings
- Make sure that when installing sealing rings without a fitting aid (bridge), both sealing rings are replaced.
- Position screw (1) with the sealing ring or sealing rings (2) on the oil feed line.
- Position oil feed line.
- Screw in the banjo bolt (2) several threads.
- Hand-tighten the bolt (1).
- Tighten the banjo bolt (2).TIGHTENING TORQUE SPECIFICATIONS
Banjo bolt for oil feed line to exhaust turbocharger M10x1
Replace the screw and sealing rings.Joining torque 8 Nm Angle of rotation 70° - Tighten down screw (1).TIGHTENING TORQUE SPECIFICATIONS
Oil feed line to exhaust turbocharger M6x16 tightening torque 10 Nm - Replace the seal (1).
Parts: Seal
- Check the pin (arrow) for damage, replace exhaust manifold if necessary.
- Make sure that the O-ring (1) does not fall into the oil duct in the engine block.
- Replace O-ring (1).
Parts: O-ring
If the O-ring (1) cannot be disassembled, the oil return lid must be disassembled.
- Coat O-ring (1) with engine oil.ENGINE OIL DESCRIPTION
Technical suitable engine oils for BMW Group engines - Loosen screws (2).
- Remove the oil return line (1).
- Ensure that the sealing surfaces in the area of the oil return line are planar and free from oil and grease.
- Replace oil return line (3) after each disassembly of the exhaust turbocharger.
Parts: Oil return line
- Replace the seal (1).
Parts: Seal
- Replace screws (2).
Parts: Screws
- Position screws (2) in oil return line (3).
- Position the seal (1) on the screws (2).
- Position the oil return line (1).
- Screws (2) must be tightened with the aid of an support person.TIGHTENING TORQUE SPECIFICATIONS
Oil return line at the exhaust turbocharger M6x16
Replace screws.Joining torque 5 Nm Angle of rotation 60° - Feed in and install the exhaust turbocharger (2) at left with the coolant lines and oil return line.
- When installing the right exhaust turbocharger (2), make sure that the oil return line is correctly positioned in the oil return cover.
- Connect connectors (1) and lock.
The connector (1) must engage audibly.
- Replace the V-clip (2).
Parts: V-band clamp
- Position V-clip (2).
- Tighten down screw (1).TIGHTENING TORQUE SPECIFICATIONS
Exhaust turbocharger to exhaust manifold V-band clamp
Replace V-band clamp.Tightening torque 20 Nm - Tighten the screw (1) on the oil return pipe (2).TIGHTENING TORQUE SPECIFICATIONS
Oil return line to oil return cover M6 tightening torque 10 Nm - Feed the coolant return line (2) above the coolant feed line (3).
- Connect connectors (1) and lock.
- Replace sealing ring (1) of the coolant line (2).
Parts: Sealing ring
- Connect coolant lines (4).
- Connect coolant lines (3).
- Tighten down screws (2).TIGHTENING TORQUE SPECIFICATIONS
Coolant line from exhaust turbocharger to bracket M6x30 tightening torque 8 Nm - Remove the lint-free rag (1).
- Replace the screw (1).
Parts: Screw
- Replace the sealing ring or sealing rings (2).
Parts: Sealing ring or sealing rings
- Make sure that when installing sealing rings without a fitting aid (bridge), both sealing rings are replaced.
- Position screw (1) with the sealing ring or sealing rings (2) on the oil feed line.
- Determining the screw type and selecting the appropriate socket wrench:
Screw type Matching socket wrench Hexagon screw (3) Commercial socket wrench (1) Multi-tooth screw (4) Multi-tooth socket wrench (2) - Position oil feed line.
- Screw in the banjo bolt (2) several threads.
- Hand-tighten the bolt (1).
- Tighten the banjo bolt (2).TIGHTENING TORQUE SPECIFICATIONS
Banjo bolt for oil feed line to exhaust turbocharger M10x1
Replace the screw and sealing rings.Joining torque 8 Nm Angle of rotation 70° - Tighten down screw (1).TIGHTENING TORQUE SPECIFICATIONS
Oil feed line to exhaust turbocharger M6x16 tightening torque 10 Nm - Position the retaining plate (2).
- Secure the wiring harness (1) on the retaining plate (2).
- Position the retaining plate (2).
- Tighten down screws (2).TIGHTENING TORQUE SPECIFICATIONS
Holder control sensor cable to the cylinder head cover M6x16 tightening torque 8 Nm - Connect connectors (3) and lock.
- Position union nut (2) and turn it a few times.
- Position screw (1) and turn it a few times.
- Tighten union nut (2).TIGHTENING TORQUE SPECIFICATIONS
Fuel delivery line to high pressure pump M14 Tightening torque 30 Nm - Tighten down screw (1).TIGHTENING TORQUE SPECIFICATIONS
Fuel supply line to cylinder head cover/cylinder head M6x16 tightening torque 10 Nm - Connect connectors (1) and lock.
- Connect connectors (1) and lock.
Follow-up work
- Refer to INSTALLING THE CLEAN AIR PIPE OF CYLINDER BANK 2 .
- Refer to INSTALLING THE LEFT CHARGE AIR LINE .
- Refer to INSTALLING CLEAN AIR PIPE OF CYLINDER BANK 1 .
- Refer to INSTALLING THE RIGHT CHARGE AIR LINE .
- Refer to CLOSING THE HIGH-TEMPERATURE COOLANT CIRCUIT .
- Refer to INSTALLING THE UNDERBODY PROTECTION OF THE STEERING GEAR OR THE FRONT THRUST FIELD .
- Refer to INSTALLING FRONT UNDERBODY PROTECTION .
- Refer to INSTALLING THE BOTTOM FRONT RIGHT SIDE COVER .
- Refer to INSTALLING FAN COWL .
- Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
- Refer to INSTALLING UPPER CROSS CONNECTION .
- Refer to INSTALLING BOTH FRONT-END STRUTS .
- Refer to INSTALLING THE CENTER ENGINE COMPARTMENT COVER .
- Refer to INSTALLING THE CATALYTIC CONVERTER FOR CYLINDERS 5 TO 8 .
- Refer to RELEASING THE HEAT SHIELD .
- Refer to INSTALLING THE CENTER COWL UPPER PART .
- Refer to INSTALLING TENSION STRUT ON SHOCK TOWER .
- Refer to ATTACHING WINDSHIELD PANEL COVER .
- Refer to INSTALLING LEFT AND RIGHT WIPER ARM .
- Refer to INSTALLING THE REAR RIGHT ENGINE COMPARTMENT COVER .
- Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
- Refer to INSTALLING RIGHT HEAT SHIELD .
- Refer to INSTALLING LEFT HEAT SHIELD .
- Refer to INSTALLING HEAT SHIELD, TOP .
- Refer to INSTALLING THE RIGHT OXYGEN SENSOR MONITOR .
- Refer to INSTALLING THE LEFT OXYGEN SENSOR MONITOR .
- Refer to PARTIALLY INSTALLING THE RIGHT LAMBDA OXYGEN SENSOR .
- Refer to PARTIALLY INSTALLING THE LEFT LAMBDA OXYGEN SENSOR .
- Refer to INSTALLING THE RETAINING BRIDGE .
- Refer to INSTALLING EXHAUST SYSTEM .
- Refer to INSTALLING CENTER STIFFENING PLATE .
- Refer to INSTALLING TANK COVER ON LEFT AND RIGHT .
- Refer to INSTALLING REAR PANEL .
- Refer to PARTIALLY INSTALLING THE REAR LEFT AND RIGHT WHEEL ARCH COVERS .
- Refer to INSTALLING BOTH EXHAUST COVERS .
- Refer to INSTALLING BOTH SIDE REAR TRIM STRIPS .
- Refer to INSTALLING THE REAR BUMPER TRIM .
- Refer to INSTALLING THE REAR DIFFUSER .
- Refer to INSTALLING THE TAIL LIGHT ON THE LEFT AND RIGHT SIDE PANELS .
- Refer to INSTALLING COVER FOR WATER CHANNEL ON LEFT AND RIGHT .
- Refer to INSTALLING THE LUGGAGE COMPARTMENT WHEEL ARCH TRIM PANEL ON THE LEFT AND RIGHT (PARTIALLY REMOVED) .
- Refer to INSTALLING BOTH LEDS IN THE CARGO AREA .
- Refer to INSTALLING LOADING EDGE TRIM .
- Refer to INSTALLING LUGGAGE COMPARTMENT FLOOR COVERING .