And have a job student working on it? I don't think so, antp. This is what happens at these places: https://www.youtube.com/watch?v=-avpx8UTakI

Even at the Saab dealer, a cabin air filter replacement was on the invoice. It definitely was not done, it was so full of dust and debris, possibly from 1998. (In my case it involves removing the wipers to access, so not a fast job and they know it's not easy to check.)