11 61 368 Removing and installing/replacing rear left charge-air duct (N54)

WARNING: This page is about a different car, the 2010 BMW X6, 2009 BMW X6, and 2008 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Switch off ignition
Remove intake filter housing . See 13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING (N54) .

IMPORTANT: Charge-air hoses with clamp fastenings must be installed dry and free from grease!
If charge-air hoses with clamp fastenings are not installed dry and free from grease, this may result in turbocharger failure!

Loosen hose clamp.

Tightening torque 13 71 6AZ , see 13 71 AIR INTAKE SILENCER

Installation:

Install charge-air hoses dry and free from grease.

Detach charge-air hose (1) from charge-air duct (2).

Fig 1: Identifying Charge-Air Hose And Charge-Air Duct

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Release quick-connect couplings (1) by turning lock through 90°.

Detach recirculated-air hoses (2) and lay to one side.

Fig 2: Identifying Quick-Connect Couplings And Recirculated-Air Hoses

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Installation:

Bring lock (1) back 90° into installation position.

Pay attention to markings.

Recirculated-air hoses must snap audibly into place.

Fig 3: Bring Lock (1) Back 90° Into Installation Position

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Unlock plug (1) and remove.

Fig 4: Identifying Plug

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IMPORTANT: Coat sealing rings of quick-connect couplings with antiseize agent.
Pressure pipes cannot be fitted without antiseize agent!

Release screw.

Tightening torque 13 71 4AZ , see 13 71 AIR INTAKE SILENCER

Unlock quick-connect coupling (1).

Detach charge-air duct (2) from throttle valve assembly and remove.

Installation:

Coat sealing ring of quick-connect coupling with antiseize agent.

Charge-air duct (2) must snap audibly into place.

Fig 5: Identifying Quick-Connect Coupling And Charge-Air Duct

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Only for E71 and only when replacing the charge air duct!

If the charge air duct (1) is renewed, the Y-pipe (3) must be renewed with two blow-off valves (2). The vacuum hoses must be adapted.

Fig 6: Renewing Y-Pipe

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Install the charge air duct (1) with a connection for the blow-off valve.

Install the blow-off pipe (2) with a blow-off valve. A vacuum line with a T-piece is no longer needed. Instead, install a new vacuum line (3) between the blow-off valve and the electric changeover valve or intake plenum.

Fig 7: Installing Charge Air Duct

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Assemble engine.

Read out fault memory of DME control unit