I need to replace a leaking o-ring on my original vacuum modulator ( 126 300SD w/ 722 303 AT). There was an article on this on MBZ, but that has disappeared into cyberspace. Somehow I remember there is a little more to it than just pulling it out and sticking the thing back in the hole. Can anyone help me with this and guide me in the right direction? TIA
-- Hans Neureiter, Houston, TX '82 300SD, '95 E300D
