i don't think they are thrilled about it, but when it is the same oem part they would get me for about [avg] 30% less...
i also bought my car from them and i'm [quite] religious about having them service it.
the last time i had my oil changed i brought my own [oem-of course] oil filter in. i told the fellas there i wasn't going to pay 13.85 ANYMORE for a 3.85 aprox filter.
they said they didn't blame me. they are quite cool at this m.b. dealer.
*92 400e 124.034, SOLD
*92 300e 124.030, SOLD