Air filter location, it is built into the engine cover on this model
Carefully remove engine cover / air filter housing, use both hands to pop off the cover
Rotate and place onto a flat, clean surface
Undo the 11 Phillips retaining fixings
Carefully lift away the air filter box
Clean off any debris on the surface of the filter. Replace with new filter if heavily contaminated
Check air filter box for debris. Clean if required. Replace the air filter
Reassemble the air filter housing