This garage is a bunch of thieves. $129.90 to tighten a loosened gas cap!!!!
My check engine light turned on one day, so I made an appointment for the following morning. Since I was at the garage and it had been nearly a year since my car's last service, I thought I may as well get its 60k mile service. Approving up to $575 to service it, I left confident that it would all be resolved.
When I came back, they had charged me $349.29 just for the labor and $179.78 for parts. (FYI, this service is $149.29 more than what VW Sterling charges near Dulles). Despite authorizing a complete service, they charged an ADDITIONAL $129.90 JUST TO TIGHTEN THE GAS CAP which turned off the check engine light. This is pure robbery. It would be hard to believe that they did not see the error code of the yellow engine light while doing the $350 of labor just to change some oil, spark plugs, filters and rotate the tires.
If none of the techs would think to tighten the gas cap (the first thing that turns up in a google search of "why is my engine light on", then this is utter incompetence and just a way to charge more money.
I highly recommend only going to VW Sterling and working with Bob Derby.