I took my vehicle in, Volkswagen, to be diagnosed and repaired for a check engine light. When I arrived to Mazvo, I spoke to the owner, and I let him know that I had run a check engine light diagnostic and had a turbo underboost code. He said he would run his own diagnostic and I agreed. I left the vehicle a few hours and received a call from the owner stating that there were 4 codes and that the vehicle needed a vacuum pump and vent valve. I was quoted $1250 which did not seem right to me. I told the owner that I would come in to talk to him in person. Once I told him I had experience working on vehicles and was mechanically experienced, he changed his story and said that it was not necessarily needed to change all the parts he quoted, hmmm. At that point I was skeptical and paid the $65 diagnostic fee and drove off. I took it back home and checked the codes and it was still the turbo underboost code, Mazvo had said it was 4 codes and this was not true. Furthermore, the diagnostic sheets did not have any code info on it, it just had the price $1250 and said parts and labor. I diagnosed it at home thereafter and it was the diverter valve, a $100 piece. Thus, I was being quoted $1250 for a $100 part and maybe 1 hour of labor. I would advise to be cautious, ask questions. The shop was trying to get one on me and I find this very concerning!