On recent scheduled service, Audi asked me to replace pollen filter and tryied to charge hefty amount for it, I deffered it and decided to do it myself this rather simple job!- Bought filters from Audi (these are two identical filters comes in one box though)- Remove glove box by removing 6 holding 8mm bolts - once glove box out of the way, look far upper right , a black removable cover , remove it and you will see one filter- pull this out, now dont forget to pull down the other one, thats not visible but tap it down and also remove it by sliding it out.- keeping in mind of airflow arrows on the filter and top mark, replace the filter first the top one, slide and move it up. then the lower one into its place.- clip back to black cover of filters- screw back the glove box and you are done!this will be same for any RHD 2005-2010 AUDI A6.