A8L V8-4.2L (BFM) (2004)
Air Injection Control Valve: Service and Repair
Combination Valve (Right), Removing and Installing
Combination valve (right), removing and installing
Removing
-
Open quick-release fasteners -1- and -2- and lift off engine cover panel (arrows).
-
Unscrew bolts -1-.
-
Release hose clamps -2-.
-
Remove bolt and nuts (arrows).
-
Disconnect electrical connectors -3- from both mass air flow sensors and pull off air cleaner housing from above.
-
Disconnect both air ducts going to lock carrier.
-
Unscrew bolts -1- and -2-.
-
Remove crankcase breather pipe (arrows).