If you want to replace or change the pollen filter on VW Passat B7, you just have to follow 5 simple steps:
The VW Passat B7 cabin filter is located under the glove compartment on the passenger side.
STEP 1: first, you have to remove these 2 screws of the foam cover
STEP 2: slide the cover to the right to take out the pollen filter
STEP 3: be carefull to put the new pollen filter with short side up
STEP 4: put the cover back sliding in to the left side
STEP 5: arrange the cover foam back and refit those 2 screws