When I needed a battery for my 210 wagon this winter, I called the dealer parts guy to get a quote and he told me the MB batteries were rebadged Interstate batteries. I have been told by someone on benz world that this is not true but I don't know why the parts guy would tell me that and then POS says the same thing so I believe that Mercedes batteries are Interstate batteries.

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2009 ML320 Bluetec
1985 300CD
1981 300TD

Past Mercedes
1979 300TD
1982 300TD
2000 E320 4Matic Wagon
1998 E430
1984 300SD
1980 300SD