1)I have a 1.5 Authentique with no A/C. Do I need a pollen filter
2) Pic 1 below I presume where the pollon filter goes, Is this the right spot
3) Is mine missing, see all pic espicially 3+4 it looks like a big blank space there, hence I have leaves coming through the vents.
Pic1

Pic 2

Pic 3
This is a closeup inside/upside down

Pic 4

Cheers for the help