Hi,
Found this by doing a google search:
Fitting Instructions
Fitting Stage 1:-
The filter is located behind the centre consule where it slides into a vertical filter housing. From the footwell find the end of the plastic filter. You may need to remove the glove box and or partially remove a consule side panel to see it.
Fitting Stage 2:-
Grip the projecting lug of the old filter (should be at the bottom of the filter) and pull up and out. Insertthe new filter and refit any previously removed items of facia.
Hope it helps.
Cheers
Shaiboy_UK