I have a 2008 335xi BMW that was suffering from multiple issues and having nothing but dismay and high bills from Hassel BMW, I decided...
I had a water pump go, later and alternator, needed brakes, and a couple of brake indicators and each time I had the work fully...
After rechecking the GPS, I realized they are indeed located at the Sunoco gas station -the dozen or so BMWs should have tipped me off!