11 65 020 Removing and installing/replacing exhaust turbocharger (M57T2)

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

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

NOTE: Troubleshooting on exhaust turbocharger.

Necessary preliminary tasks:

Remove acoustic cover. See 13..... REMOVE THE ACOUSTIC COVERS (M57T2 WITH AND WITHOUT SCR) .
Remove diesel particulate filter. See DIESEL PARTICULATE FILTER .
Remove right PRESSURE PIPE .
Remove intake port for intake noise damping. See 13 REMOVING INTAKE DUCT (M57T2) .
Disconnect clean air pipe . See 13 71 150 REMOVING CLEAN AIR PIPE (M57T2) or 13 71 150 REMOVE THE CLEAN AIR PIPE (M57T2 WITH AND WITHOUT SCR) between air-mass sensor and turbocharger.

IMPORTANT: In event of exhaust turbocharger damage:

Pressure pipes
Charge air cooler
Intake plenum

must be checked for foreign bodies, damage and operation.

Release banjo bolt (1).

Installation note:

Tightening torque: 11 42 2AZ .

Replace sealing rings.

NOTE: Catch escaping engine oil in a suitable container.

Fig 1: Identifying Banjo Bolt And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (2).

Release clamp (3).

Installation note:

Replace clamp.

Tightening torque: 11 65 1AZ .

Clean sealing surfaces.

Release screw (1) from oil return line.

Remove oil return line.

Tightening torque: 11 42 3AZ .

Fig 2: Releasing Screw From Oil Return Line

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Release bolt (2) and remove exhaust turbocharger (3).

Installation note:

Replace gasket between exhaust turbocharger and exhaust manifold.

Fig 3: Identifying Exhaust Turbocharger Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

If necessary, replace exhaust turbocharger.

Modify oil return passage.

Release oil line banjo bolt (1).

Installation note:

Tightening torque: 11 42 2AZ .

Replace sealing rings.

Oil line (2) must run parallel to housing.

Fig 4: Identifying Oil Line Banjo Bolt Dimension

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

IMPORTANT: To avoid damaging the threads and prevent exhaust turbocharger leakage, insert mounting bolts in 1/2 turns simultaneously.