11 65 020 Removing and installing/replacing exhaust turbocharger (N57 Diesel): Notes

WARNING: This page does not describe the selected car, but rather 50 other vehicles, including the 2016 BMW M5, 2016 BMW ActiveHybrid 5, 2016 BMW 550i xDrive, 2016 BMW 550i, and 2016 BMW 535i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 6 050 .

WARNING: Risk of burning.
Only perform this repair work on an engine that has cooled down.

NOTE: TROUBLESHOOTING ON THE TURBOCHARGER .

IMPORTANT: For exhaust gas turbocharger damage:

The following components must be checked for foreign particles, damage, and correct function:

- Pressure pipes

- Charge air cooler

- Intake plenum

Additionally, it is mandatory to follow the INSTRUCTIONS regarding turbocharger damage due to blocked oil supply lines.

Necessary preliminary tasks:

Remove AIR FILTER .
Remove ACOUSTIC COVERS on top and front.
Only all-wheel drive vehicles: Remove STIFFENING PLATE .
Remove DIESEL PARTICULATE FILTER .
Remove right PRESSURE PIPE .

N57Sl graphic

Disconnect plug connection (1) on actuator drive.

Release screw (2).

Unlock clip (3) in direction of arrow.

Pull off air intake hose (4) in direction of arrow.

Fig 1: Identifying Intake Hose, Connector, Screw And Clip

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Release banjo bolt (1).

NOTE: Catch escaping engine oil in a suitable container.

Disconnect line (2).

Tightening torque 11 42 2AZ .

Installation note:

Clean sealing surfaces.

Fig 2: Identifying Banjo Bolt And Line

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Unfasten hose clamp (1).

Return line is also removed when exhaust turbocharger is removed.

If necessary, modify oil return line and replace gasket.

Fig 3: Identifying Hose Clamp

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Release screws (1).

Remove holder (2).

Tightening torque 11 65 2AZ .

Fig 4: Identifying Holder And Screws

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Release screw at V-band clamp.

Tightening torque: 11 65 1AZ .

Fig 5: Ensuring Ends Of V-Band Clamp Rest Parallel To Each Other

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Installation note:

Screw connection of V-band clamp is too loose.

If you can see a gap between the ends of the V- band clamp, release and then repeat the screw connection.

Tightening torque: 11 65 1AZ .

Fig 6: Identifying Gap Between Ends Of V-Band Clamps

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Installation note:

Screw connection of V-band clamp is too tight.

If the ends of the V-band clamp are positioned under each other, release and then repeat the screw connection.

Tightening torque: 11 65 1AZ .

Fig 7: Identifying Misalignment Of V-Band Clamp Ends

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Installation note:

Pay attention to retaining pin (1) when installing exhaust turbocharger.

Replace sealing ring (2).

Fig 8: Identifying Sealing Ring And Retaining Pin

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If necessary, replace exhaust turbocharger .

Release banjo bolt (1).

Installation note:

Tightening torque 11 42 2AZ .

Replace sealing rings.

Engine oil pipe must run obliquely along the housing (see Fig 9).

Fig 9: Identifying Proper Installation Position Of Engine Oil Pipe

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Assemble engine.

Observe diagnosis instructions.

Complete vehicle
Power train
Engine electrical system
Air supply
Charging pressure control