I changed the front rotors and was told there's no core credit -- MB wants new calipers used each R&R. There's nothing wrong with the old castings and I'd like to rebuild each with a new seal, new piston, and the two washer seals on the brake line banjo fitting. Can anyone assist in locating a supplier for these parts? The casting itself appears to have a Bosch insignia on it.

Thanks.

I have NEVER replaced a brake caliper, in over 55 years of car ownership, including 3 Mercedes -- among many others. The idea of replacing calipers seems to be a Mercedes dealership push to simply jack up the bill!! They are very good sometimes, depending on the dealer, at creating unnecessarily high costs for relatively simple jobs. I tend to do my own basic maintenance, including brakes and similar things, or take my cars to good mechanics (not Mercedes dealers) who perform work at reasonable rates and do not try to replace everything on the car at one stop. If your calipers are working fine, simply continue to use them.
Also, the idea of replacing rotors every little whipstitch seems to be another Mercedes dealer ploy to increase billings. Unless rotors are severely worn or cannot be turned, there is no need to replace rotors with every pad change either. I am sure other members of the forum who are working Mercedes techs would agree with these comments, but they will add their thoughts as well.

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Ben Harrison Carter
1999 Mercedes ML320 87K
1992 Mercedes 300CE 89K
1995 Corvette 29K -- Sold Dec 09
1989 Mercedes 420SEL 99K -- (Sold 4/08)
1968 Mercedes 230S (106K) (Sold 9/06))
1976 Mercedes 450SEL 130K (Just sold - 06)
1961 Mercedes 220Sb (sold years ago)