Yep, definitely the accumulators are bad. I think they're in the $180/each neighborhood. Hurts the wallet but helps the back.
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Rgds,
Aaron Greenberg
MB technician
Precision Motorcars, Cincinnati, Ohio
'67 250SE Cabriolet
'77 450SL
'79 6.9
'80 300SD
'85 380SE
'89 420SEL
'93 300E 2.8