Remove exhaust turbocharger

WARNING: Hot surfaces .
Risk of burning!

Perform all work only on components that have cooled down.

WARNING: Hot fluids .
Risk of scalding!

Conduct all work in the vehicle wearing appropriate personal protective equipment only.

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: 61 35... NOTES ON ESD (ELECTROSTATIC DISCHARGE) PROTECTION .

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

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
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
Rattling noises in the engine compartment are caused due to increased play in the linkage of the wastegate valve controller.
To eliminate the rattling noises, a repair kit 5A7A286 for the wastegate linkage with a modified spring and an additional spacer sleeve can be ordered from the applicable BMW parts catalogue.
It is not necessary to replace the entire electrical wastegate valve controller .

Preliminary work

Refer to REMOVING REAR HOOD SEAL .
Refer to REMOVING FRONT WINDSHIELD PANEL COVER .
Refer to REMOVING THE UPPER BULKHEAD COVER PANEL .
Refer to REMOVING SUSPENSION CROSS-BRACE .
Refer to REMOVING LEFT AND RIGHT WIPER ARM .
Refer to REMOVING REAR WINDSHIELD PANEL .
Refer to REMOVING THE REAR BULKHEAD .
Refer to REMOVING RIGHT SUSPENSION STRUT BRACE .
Refer to REMOVING INTAKE PORT .
Refer to REMOVING INTAKE SILENCER HOUSING .
Refer to REMOVING CROSS CONNECTION .
Refer to REMOVING FAN COWL WITH ELECTRIC FAN .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING CLEAN AIR PIPE .
Refer to REMOVING THE LAMBDA OXYGEN SENSOR .
Refer to REMOVING THE OXYGEN SENSOR MONITOR .
Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
Refer to REMOVING FRONT RIGHT WHEEL .
Refer to REMOVING THE FRONT RIGHT WHEEL ARCH COVER .
Refer to DRAINING THE COOLANT FROM THE COOLANT CIRCUIT .
Refer to REMOVING REAR UNDERBODY PROTECTION .
Refer to REMOVING THE CONNECTING SUPPORT FROM THE TUNNEL AT FRONT AND REAR .
Refer to REMOVING THE CROSS-MEMBER ON THE REAR AXLE .
Refer to REMOVING EXHAUST SYSTEM .
Refer to REMOVING THE FRONT HEAT SHIELD .
Refer to REMOVING THE REAR HEAT SHIELD .
Refer to REMOVING PROP SHAFT .
Refer to REMOVING CATALYTIC CONVERTER .
Refer to REMOVING THE OIL RETURN LINE FOR THE EXHAUST TURBOCHARGER .

NOTE: RISK OF DAMAGE
Damage of the electric wastegate valve controller .
Excessive force when removing and installing a jammed exhaust turbocharger may damage the electric wastegate valve controller .

Do not pull on the electrical wastegate valve controller or on the coupling rod.
Apply force only at the turbine housing and exhaust manifold.
Do not pull on the compressor housing.

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

Close the exhaust turbocharger (1) with a standard tool (2) .

Courtesy of BMW OF NORTH AMERICA, INC.
Loosen screw (1) .
Guide the heat shield (2) out of the holder (3) and remove.

Courtesy of BMW OF NORTH AMERICA, INC.
Loosen screws (1) .
Guide the line (2) out and set it aside.

Courtesy of BMW OF NORTH AMERICA, INC.
Snap the locking mechanisms (1) into place in the holder in the direction of the arrow.

Courtesy of BMW OF NORTH AMERICA, INC.
Unlock and disengage lock mechanisms (1) on both sides.
Guide out the pressure tube (2) from the exhaust turbocharger (3) in the direction of the arrow and set aside.

Courtesy of BMW OF NORTH AMERICA, INC.
Loosen screw (1) .
Guide out the coolant feed line (2) and set aside.
Guide out the coolant return line (3) and set aside.
Catch and dispose of leakage coolant.

Courtesy of BMW OF NORTH AMERICA, INC.
Loosen screw (1) .
Guide out the oil feed line (2) and set aside.
Catch and dispose of emerging motor oil.

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: TECHNICAL INFORMATION
Exhaust manifold/exhaust turbocharger is not bolted to the underside, but clamped instead. When removing/replacing the exhaust manifold/exhaust turbocharger, the trim strip remains screwed on.
Ensure that the trim strip (2) remains screwed when removing the exhaust turbocharger (1) .
The exhaust turbocharger (1) is not screwed on the bottom side, but rather is clamped in the trim strip (2) .

Courtesy of BMW OF NORTH AMERICA, INC.
Release the nut in the sequence (5) to (1) .

Fig 1: Exhaust Manifold Nuts Loosening Sequence
Courtesy of BMW OF NORTH AMERICA, INC.
Guide out and remove the sliding frame (1) .
Guide the exhaust turbocharger (2) out of the trim strip (3) in the direction of the arrow.

Courtesy of BMW OF NORTH AMERICA, INC.
CAUTION:
Heavy component .
Heavy components can lead to injury or damage .
- Remove and install heavy components with the aid of another person/other persons.
Guide the exhaust turbocharger (1) upwards and out and remove.

Courtesy of BMW OF NORTH AMERICA, INC.
Guide out the seal (1) at the cylinder head and remove.

Courtesy of BMW OF NORTH AMERICA, INC.