I have used rebuilt accumulators for early Rolls-Royces but they were meant to be disassembled.

I can see how someone could recharge the nitrogen pressure but there surely would be no way to repair the leaking diaphram that lost the original gas charge.

I wouldn't waste my time on anything other than OE MB or Lemforder. Maybe Febi-bilstein, also.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician