Remove 2 bolts from the air filter cover.
Open the clamp and remove the filter cover.
Remove the filter element.
Cover the carburetor diffuser with a clean cloth.
Clean the filter housing thoroughly.
Caution: Do not clean the filter element with gasoline or oil. Do not blow it with compressed air.
Insert a new filter element.
Place the cover so that the groove aligns with the protrusion on the filter body.
Screw on the filter cover and close the clamp.
(The original text of the material can be found on the website «AudiManual.ru»)