Air Duct: Service and Repair

64 31 053 - Removing and installing or replacing fresh air duct





Necessary preliminary tasks:
All:
- Remove microfilter housing lower sections on left and right Removing and Installing/Replacing Left or Right Microfilter Housing Lower Section.

- Remove tension strut on spring strut dome 51 71 373 - Removing and installing/replacing tension strut on spring strut dome.

Only M57:
- Remove air cleaner element.





Release screw (1).

Installation:
Tightening torque 64 31 2AZ [1][2]Cabin Air Filter / Purifier.

Unfasten screws (2).

Installation:
Tightening torque 64 31 1AZ [1][2]Cabin Air Filter / Purifier.

Turn quick-release fastener (3) approx. 90° counterclockwise.

If necessary, release screw on pipe clamp.

Installation:
Tightening torque 64 31 3AZ [1][2]Cabin Air Filter / Purifier.

Feed out fresh air duct (4) in direction of arrow and remove.

Installation:
If necessary, replace damaged seals.
Make sure fresh air duct (4) is correctly seated.





Security version:
When replacing fresh air duct, pay attention to engine compartment protective plating.