Insert the exhaust turbocharger for the cylinders 5 to 8

Further information is available.

WARNING: Hot surfaces.
Risk of burning!

Perform all work only on components that have cooled down.

CAUTION: Heavy component.
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
Electrostatic discharge.
Damage to or destruction of electrical components.

Leave the electrical components in their original packaging until they are being installed. Only use the original packaging for returning the product. Always package removed components straight away.
Read and comply with user information on using the associated special tool 12 7 060.
Only tap the housings of electrical components. Do not tap pins or multi-pin connectors directly.
Wear electrically conductive clothing and antistatic shoes (with ESD symbol).
For additional information see: NOTES ON ESD (ELECTROSTATIC DISCHARGE) PROTECTION .

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

NOTE: TECHNICAL INFORMATION
If the exhaust turbocharger is damaged, it is imperative to observe the additional information.

NOTE: TECHNICAL INFORMATION
For exhaust turbocharger damage: Check the pressure pipes, charge air cooler and intake plenum for foreign matter, damage and correct functionality.
If the oil return line is exchanged, then the connecting pipe to the oil sump must ALWAYS be cleaned, as the connecting pipe can coke.

NOTE: TECHNICAL INFORMATION
Prior to replacing the exhaust turbocharger: Observe the notes on troubleshooting on the exhaust turbocharger.

Prepare for the installation of the exhaust turbocharger

Check the oil feed and oil return lines for contamination or obstruction and clean or replace as needed.
If the oil feed and/or oil return lines are heavily contaminated, we recommend changing the motor oil and the oil filter.
If installed: Check the coolant feed 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 filter for contamination and clean or replace as needed.
Check correct functioning of crankcase ventilation.
Replace all gaskets.
Parts: Seals
Replace the seal (1).
Parts: Gasket
Check the pin (arrow) for damage and replace the exhaust manifold if necessary.

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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

Technically suitable

engine oils for BMW

Group engines

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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.

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Replace oil return line (3) after each disassembly of the exhaust turbocharger.
Parts: Oil return line
Replace the seal (1).
Parts: Gasket
Replace screws (2).
Parts: Screws
Position screws (2) in oil return line (3).
Position the seal (1) on the screws (2).

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Position the oil return line (1).

Screws (2) must be tightened with the aid of an support person.

TIGHTENING TORQUES SPECIFICATION

Oil return line at the exhaust turbocharger
M6x16 Replace screws.	Joining torque	5 Nm
	Angle of rotation	60°

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Feed in and install the exhaust turbocharger (2) at left 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.
Connect connectors (1) and lock.
The connector (1) must engage audibly.

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Replace the V-clip (2).
Parts: V-band clamp
Position V-clip (2).

Tighten down screw (1).

TIGHTENING TORQUES SPECIFICATION

Exhaust turbocharger to exhaust manifold
V-band clamp Replace V-band clamp.	Tightening torque	20 Nm

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Tighten the screw (1) on the oil return pipe (2).

TIGHTENING TORQUES SPECIFICATION

Oil return line to oil return cover
M6	Tightening torque	10 Nm

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Feed the coolant return line (2) above the coolant feed line (3).
Connect plug connection (1) and lock.

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Replace sealing ring (1) of the coolant line (2).
Parts: Sealing ring

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Connect coolant lines (4).
Connect coolant lines (3).

Tighten down screws (2).

TIGHTENING TORQUES SPECIFICATION

Coolant line from exhaust turbocharger to bracket
M6x30	Tightening torque	8 Nm

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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.

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Position oil feed line.
Screw in the banjo bolt (2) several threads.
Hand-tighten the bolt (1).

Tighten the banjo bolt (2).

TIGHTENING TORQUES SPECIFICATION

Banjo bolt for oil feed line to exhaust turbocharger
M10x1 Replace the screw and sealing rings.	Joining torque	8 Nm
	Angle of rotation	70°

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Tighten down screw (1).

TIGHTENING TORQUES SPECIFICATION

Oil feed line to exhaust turbocharger
M6x16	Tightening torque	10 Nm

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)

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Position the retaining plate (2).
Secure the wiring harness (1) on the retaining plate (2).

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Position the retaining plate (2).