13 71 170 Removing and installing rear air duct (N54, N54T)

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.

IMPORTANT: Risk of damage through lever action at the top on the air duct!
Bayonet lock on air duct may break!

Necessary preliminary tasks:

Remove front AIR DUCT
Remove CATALYTIC CONVERTER for cylinders 4-6
Remove right charge-air duct.

Unlock hose (1) and detach.

IMPORTANT: Release screw (2).
Do not detach air duct.
Risk of damage!
Bayonet lock on air duct may break!

Fig 1: Identifying Hose Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Remove VACUUM UNIT (1) on turbocharger for cylinders 4-6.

IMPORTANT: Unlock air duct (2) in clockwise direction.
Detach air duct (2) first from turbocharger towards rear.
Feed out air duct and remove.

Fig 2: Detaching Air Duct First From Turbocharger Towards Rear

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Check sealing ring (1) for damage.

Replace damaged sealing ring.

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

Fig 3: Identifying Sealing Ring And Turbocharger

Courtesy of BMW OF NORTH AMERICA, INC.