First remove the air cleaner assembly. Screws, 5 x Torx 25. Remove the hose clamps from the air tube.
Disconnect the wiring plug from the mass airflow sensor, slide out the locking catch and disconnect it from the sensor. Remove the cover and the air filter.
|Pull the filter assembly away from the 3 rubber mountings. Remove the assembly gently and push/pull the tube in the bottom of the housing downwards.|
|Remover the small tubes from the air hose. Use a plier or the special tool. Remove the hose clamps from the air hose.|
Now you can see the dump-valve, remove the small hose, it is possible that the hose is attached without a clamp..
(When you attach the hose again, use a cable tie to prevent the hose from disconnecting).
Remove 2 Torx 30 bolts. Remove the third torx with one hand while keeping the cover in place with your other hand. This to prevent parts falling into the engine bay.Remove carefully all parts.
|After removing the dump-valve, you should have these parts.|
|When remounting the dump valve keep all parts in the following order of the left drawing.|
|Clean all parts. Lubricate the membrame with acid-free vaseline and stick it to the membrame housing.|