Having done this job as a cough cough 'professional'

for almost 2 years now I have changed filters on a lot of cars now.
Removing the glove box is quite common to get to the filters. Eg Astras, Hondas, nissans etc. however I find that its the difficulty of removing the glove box that gets you.
Some Hondas you simply open glove box, press in glove box sides and flip down revealing your prize. The aforementioned Astra g has 4 torx. Pull GB out, disconnect courtesy gb light and again your prize is there. Insignias (iirc) is the same but you have to pry off the side panel to get to a stupid hidden screw.
The easiest filter ever is ironically a pegouet (307, maybe 308, can't remember). But you open the bonnet and the filter you can see in the scuttle area, no parts to remove, pick up old filter and fit new. 20 second job!!!
Mazda and fords of 06 (perhaps?) vintage you have to drop the fuse box in passenger footwell, remove 2 x 13mm to remove fuse box holding bracket then bend your arm in 3 different directions at the same time to get to the 5.5mm bolts. Time consuming but not too bad.
I could go on.....so I will.....
The worst pollen filter in the world is the Renault grand scenic. Clutch pedal out. Steering column dropped with its cowling. Remove prt of centre console and you JUST have enough access to get the filter out. But if that wasn't bad enough the filter is twice the size of the housing. Utterly stupid.
Shitroen c3 and pugs with the 1.6hdi engine (ie most of them) have a nice pull out plastic cover. Easy.
The Renault capture had a surprisingly easy one in the pass foot well.
Easiest though in general over the make range is vw and Audi. Pass foot well. Pull down foam cover. Pull out plastic cover. Old out new in. Bish bash bosh
Any more info needed I'll be here all week
