I recently bought Aero Wiper arms from a local breakers and fitted them to my B6.
I also bought new Aero blades from my local audi dealer. The wipers look so much better but were only silent for about 5 mins of driving in the rain, then thump everytime the blade changes direction (
I have thoroughly cleaned the windscreen to make sure there is no traffic film or build up causing it but it still continues.
Its driving me mad, i have to either keep the wipers off or turn the music up.
Any suggestions as to what could be wrong? Dodgy blades from the dealer maybe?