Extremely disappointed in Hoffman Audi of East Har...

Extremely disappointed in Hoffman Audi of East Hartford. I recently got a diagnosis service and was told that I needed $4100 in repairs, extremely high costs. On top of that, there were no loaners cars for two weeks out of the day I called to get it serviced, very inconvenient and not accommodating. I went for a second opinion on my car and decided to get it diagnosed by a different mechanic. Turns out my $4100 repair cost went down to $350 because all I needed was spark plugs. All my misfire codes went off and the car runs perfectly smooth. So not only would I have paid $4100 to fix the car at Hoffman Audi, but the diagnosis video I was sent, did not even address spark plugs at all. Therefore, my issue would not have been solved even after spending that tremendous amount of money. I m just disappointed and its hard to trust any dealership of Audi from now on.