This article is a reference for rebuilding the 4-piston fixed front brake calipers and the 2-piston fixed rear brake calipers for a Mercedes Benz 400E. General information in this article can be referred to for similar brake calipers. Part numbers will be specific to the brake calipers on the 400E.
Time | 2 hours |
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Cost | |
Difficulty | |
Parts Required | Front caliper rebuild kit (000 421 71 86, requires 2) Dust cap for 42mm piston (000 421 17 20, requires 4) Dust cap for 38mm piston (000 421 16 20, requires 4) Rear caliper rebuild kit (000 421 72 86, requires 2) Bleeder valve (000 421 27 65, requires 4) Bleeder valve cap (000 421 08 87, requires 4) |
Applicable models | W124 400E |
Disassembly does not include separating the caliper halves. If the caliper halves are not leaking brake fluid, then there is no reason to separate the halves and replace the special o-ring inside. Furthermore, Mercedes does not recommend separating the calipers for special torque procedures that are not easily replicated.