When I took mine apart at the volute end, the seam was sealed by a funny looking teardrop shape o-ring. Mine was leaking from this seam. I guess finding that gasket short of getting on a plane to Sindelfingen will be like finding bigfoot fossils.

Guess I better help the worn o-ring along with some black RTV...

__________________
327K on 1986 W201, 602.911, 722.414 2.5 190D ("The Red Baron")
139K on 1993 W124, 104.942, 722.433 2.8 300E ("Queen")

http://farm5.static.flickr.com/4081/...0bb92d3c_m.jpg http://i370.photobucket.com/albums/o...g?t=1325284354

Do not worry about your difficulties in Mathematics. I can assure you mine are still greater.
- Albert Einstein

take a walk down memory lane...