13 71 170 Removing and installing/replacing rear air duct (N54)

WARNING: This page is about a different car, the 2013 BMW Z4, 2012 BMW Z4, 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Risk of damage through lever action at the top on the air duct!

Air duct may break!

Necessary preliminary tasks

Remove left TENSION STRUT
Remove front UNDERBODY PROTECTION

NOTE: For purposes of clarity, the pictures show the engine removed.

Release sheet metal nuts (1).

Unfasten screws (2).

Remove heat shield (3).

Fig 1: Identifying Sheet Metal Nuts, Screws And Heat Shield

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Unlock and disconnect line (1).

Unlock connector (2) and remove.

Unlock and disconnect quick-connect coupling (3).

Fig 2: Identifying Quick-Connect Coupling And Connector

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Installation

Turn lock (1) until arrow markings are flush.

Fig 3: Turn Lock (1) Until Arrow Markings Are Flush

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IMPORTANT: Do not detach air duct in upward direction.

Risk of damage!

Air duct may break!

Fig 4: Identifying Screw And Bracket

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Release screw (1).

Tightening torque 13 71 8AZ .

Release screw (2) and remove bracket (3).

Tightening torque 13 71 12AZ .

NOTE: Illustration with engine removed.

Pull off air duct (1) from turbocharger, feed out and remove.

NOTE: Illustration with engine removed.

Fig 5: Removing Air Duct From Turbocharger

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Installation

Check sealing ring (1) for damage.

Replace damaged sealing ring.

Make sure sealing ring (1) is correctly seated in air duct (2).

Fig 6: Identifying Sealing Ring And Air Duct

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Assemble engine.

Check air duct for leaks.