1990 190E 2.6 w/ 166K. Had the tranny serviced 6 months ago and there's plenty of fluid. This morning it would shift up -- seems to be stuck in 2nd gear. Limping back home there were moments when the engine would revv up and seemed that it wasn't egaging the tranny at all.

Do I have a major ($$$) problem? I'm not sure if the fluid in the converter was also replaced. Thanks for the help.