I've been fortunate to have a local, independent import shop that has done almost all the work on my 07 Limited Roadster from oil changes to transmission service to replacing the washer fluid tank, to updating all exterior light with LEDs, to the most recent, replacement of the washer nozzles. They knew exactly what I meant when I said I needed B service.
Before anyone pipes up about doing my own work, I'm disabled and limited in bending, lifting, pushing, pulling, and have a history of turning seemingly simple projects into utter disasters. So, having a local shop that knows MBs AND Crossfires has been a huge blessing. After all, even Nichelle Nichols' white Crossfire coupe was tended to by these guys.
(Saw her driving it through downtown once several years ago.)