Remove exhaust turbocharger

WARNING: Hot surfaces .
Risk of burning!

Perform all work only on components that have cooled down.

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 PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION) .

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.
For additional information see: TROUBLESHOOTING ON THE EXHAUST TURBOCHARGER .

Preliminary work

Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING INTAKE SILENCER HOUSING .
Refer to REMOVING CLEAN AIR PIPE .
Refer to REMOVING CHARGE AIR LINE .
Refer to REMOVING THE OXYGEN SENSOR MONITOR .
Refer to REMOVING THE LAMBDA OXYGEN SENSOR .
Refer to REMOVING HEAT SHIELD FOR CYLINDER HEAD COVER .
Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
Refer to REMOVING REAR UNDERBODY PROTECTION .
Refer to REMOVING THE CONNECTING SUPPORT .
Refer to REMOVING THE CONNECTING SUPPORT WITH THE TENSION STRUT .
Refer to REMOVING EXHAUST SYSTEM .
Refer to REMOVING CATALYTIC CONVERTER .
Refer to REMOVING THE UNFILTERED-AIR SNORKEL .
Refer to DRAINING THE COOLANT FROM THE HIGH-TEMPERATURE COOLANT CIRCUIT .
Refer to REMOVING THE FRONT SECTION OF THE COOLANT RETURN LINE .
Refer to REMOVING THE COOLANT FEED LINE (COOLANT RETURN LINE IS REMOVED) .
Refer to REMOVING THE OIL RETURN LINE FOR THE EXHAUST TURBOCHARGER .

Unscrew the guide pin (1).

Unlock plug connection (1) and disconnect.

Loosen screw (1).
Release screw (2) and remove the support.

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Courtesy of BMW OF NORTH AMERICA, INC.

Loosen screw (1).
Detach oil feed line from engine block.

Install the special tool 2 446 919 on the exhaust turbocharger and secure it with the bolt (1).
Make sure that the special tool 2 446 919 is flush with the exhaust turbocharger in the marked area.

Secure the special tool 2 446 919 by turning the clamping lever (1) in the direction of the arrow.

NOTE: The clamping lever that is shown in the graphic is already in its end position.

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Courtesy of BMW OF NORTH AMERICA, INC.

Courtesy of BMW OF NORTH AMERICA, INC.

Position the holder (1) and fasten it with the bolt (2).

NOTE: Holder 1 is used for the final mounting of the special tool 2 446 919.

Position the retainer (1) and secure it with the nuts (2).

TIGHTENING TORQUE SPECIFICATIONS

U bolt to special tool 2 919 (446)
The tightening torque must be observed! Risk of damage to the exhaust manifold!	1 Nm

Position the retainer (1) and secure it with the nuts (2).

TIGHTENING TORQUE SPECIFICATIONS

U bolt to special tool 2 919 (446)
The tightening torque must be observed! Risk of damage to the exhaust manifold!	1 Nm

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Courtesy of BMW OF NORTH AMERICA, INC.

Courtesy of BMW OF NORTH AMERICA, INC.

Release nuts in the order (7) till (1) in semicircular pattern.
Secure exhaust turbocharger against falling down.

Remove the sliding rail (1).

NOTE: TECHNICAL INFORMATION
Do not damage the thermal compensating elements Disassembly and installation including intermediate storage of the exhaust turbocharger is only permitted with mounted special tool 2 466 919.

Thermal compensating element of the exhaust turbocharger (1) or exhaust manifold should not be

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Fig 1: Exhaust Turbocharger Nuts Loosening Sequence

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Courtesy of BMW OF NORTH AMERICA, INC.

bent or deformed.

Carefully guide out and remove the exhaust turbocharger (1).

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