Thanks Benzmac, for answering my post. Took me a week to get a digital photo and although I have it on Photopoint, I can't get it shared. I will keep trying but could zip and email it to you directly, but not without your permission.
I have to say that I have not confirmed it, but suspect it was a fix from a vacuum leak a local mechanic made. I will confirm if so before I waste anymore of your time.
'85 500SL Euro
PS - Yes, it has a frequency valve, not EHA.
[Edited by Stevegman on 03-13-2001 at 06:40 PM]