Hope this turns out to be helpful.
I needed to replace the hydraulic cylinders in my E320 cabriolet's top. Needless to say, the dealer wanted over $5000.00 for the parts alone. WOW! About twice that for the entire job. I thought I'd never have my top down again.
But...another enthusiast on Benzworld turned me on to this guy who is rebuilding them as I write @ $40.00 each. Nice.
mercedescylinders@sbcglobal.net
Dennis Ficken
16285 S. Chester
Olathe, Ks 66062
Best wishes, and goods luck!
David