$228 for diagnostics Per complaint?? This is crazy right ?

You are in Portland ?

Yes we are in Portland. And whether or not the codes are related is a good point, however not your responsibility. A good shop will be honest and let you know if they are related. Look up Steve's Imports

Nothing has been wrecked. I don't know if they are related or not. I'm not a car person. Maybe I have had special treatment in the past I don't know. But each car I've ever taken to any shop listens to me yap about different 'squeaks' and noisy 'thingys' , takes my keys and calls me later with what's wrong and how much it will be to fix. Maybe it doesn't work this way anymore or maybe Audi never has worked this way.

Another possibility (there are many , is the prior service writer(s) just simply didn't break it down for you like the new one , but still paid the tech based on what they checked/repaired and just gave you the 'bottom line'. Service advisors learn many different ways of dealing with the variety of customers that come in , the good ones know how to 'read' them.

Agreed with this comment