13 71 160 Removing and installing/replacing front air duct (N54, N54T)

Necessary preliminary tasks: 

• Remove FAN COWL .
• Drain COOLANT .

Unlock and detach coolant hose (1).

Turn the lock to release the snap fastener (2) and remove.

Release hose clamp and detach air duct (3).

Tightening torque 13 71 5AZ .

Fig 1: Identifying Air Duct, Snap Fastener And Coolant Hose

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Installation note: 

Turn the lock (1) back until the arrows line up.

Slide the air hose onto the air duct.

The air hose must audibly snap into place.

Fig 2: Identifying Charge Air Duct Lock

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Release screws and pull off the coolant hose (1).

Tightening torque 11 53 6AZ .

Installation note: 

Check sealing ring.

Replace damaged sealing ring.

Fig 3: Identifying Front Air Duct Coolant Hose And Screws

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Unfasten screws (2).

Tightening torque 13 71 6AZ .

Unclip the a/c line (1) from the holder.

Release and remove the coolant hose (2) from coolant thermostat and loosen from holder (4).

Release coolant hose (3) from holder (4) and lay down to one side.

Fig 4: Identifying Front Air Duct A/C Line, Coolant Hoses And Holder

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Fig 5: Removing Air Duct From Turbocharger

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Pull the air duct (1) off in direction of arrow.

Installation note: 

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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