I had electrical issues: replaced my battery then alternator myself ( Bosch, not VW brand ) and that worked for a bit, then the car died out after a 90 mile drive. Took it to the dealership. They said my battery was completely dead, forever ( less than a week old ) and needed to replace it to do their fancy electrical test. I said okay, I wanted peace of mind. After the test, the service dude told me the alternator needed to be replaced ( 3 days old ). Wanted to charge for the alternator, the alt pulley and some other bit. Total bill was like $1400 plus a "that might not be the final fix". I changed the original alternator to avoid that kind of cost and decided I wasn't having it. So, I returned my previously installed alternator for a new one ( The Bosch is ~$250 instead of the ~$600 they wanted ). The pulley comes preinstalled ( like every other alternator ) so axe another ~$110 and I forget the last bit they wanted to charge.
So new battery, new alternator and it was still acting up. Took it to a euro shop around here that has electrical work listed as one of their specialties. They came back and told me the alt was fine, battery was fine, but the FACTORY grounding wiring was in the WRONG PLACE. So the dealership, with their expensive fancy vw test didn't know their factory shizz was wrong?! Got the work and test done for less than $200 and was 100% solid afterwords. I decided to charge my now 2 week old battery and get it tested at autozone, came back perfectly fine. Now I have a vw battery I didn't need and paid for a test that didn't work. They also charged a little bit of labor for topping off my windshield fluid ( was listed on my receipt as misc or something, the service dude mentioned they topped it off )
On a previous visit for a busted fuel injector, the same service person noticed my airbag light was on. I had taken my passenger seat out at one point. He said he'd take care of it for me for $50 dollars. No thanks.
I will never go there for any service again. I've gotten really good at working on my own car thanks to them, for that I'm thankful. Special thanks to this forum for all the DIYs and tips. Plus you can get parts for dramatically less online.
I... hate them.