Tried the durametric after 6 months of no problems. Just wanted to see if there is anything there though i feel there are no faults. There were faults all over the place. Mainly on comfort stuff. But there was an unknown pdk error. I proceeded to erase all faults, started the car a couple of times and checked again. No faults...except for 1. Fault 8023 ac/recirc flap motor.... Over here the ac is almost always in recirc mode as pollution comes in to the car if not in recirc mode. Everything seems to work fine...what is this then..anybody care to share their insight. Thaks bros