I own a 1994 e320 and I am almost done fixing my idle problem. I need the small hose that is about 3 inches long with an elbow bent that goes from the emission system (or the manifold?) to the throttle housing. Sorry for the stupid question but I learn as i go. Does anyone knows the part number or have a diagram of the engine with that particular part and where can I order it on line besides the freaking dealer? Your help will be much appreciated. Once I replace this hose I am sure my idle problem will be fixed! I will keep you posted.