Techsters, New at this but think it's great idea. Hope someone can help. I have a 1990 300e, (3liter-6) 145K miles, I am second owner and had it for 125k of it's miles.

Prob is the trans wont "upshift" to highest gear any longer. shifting has also become slightly "clunky" but car runs great and performs well otherwise. I had my local MB guru look at it and he couldn't nail the problem. I have pulled the pan off the tranny, replaced oil w/ new synthetic, no major debris noted in the pan, cleaned everything up an put new trans oil filter, gasket, etc. but still no fix.

car will start fine, sometimes idles a little high but shifts at normal points till high gear, then stays in 3rd. It should shift up to "overdrive" or highway gear and let rpms fall down to about 2000 rpms when hittin' bout 60 or so, right? it just refuses to do this any longer. whazzup? thanks!

(ps, I also have an 84 928 and a bored out, screamin 81 CJ-7, 304 cu in V8)