so very sorry but you are correct, the car is a 1991 190E 2.6 the fuel line is very hard to see when installed but any one who has worked on these understands, the description in first post is lacking so here we go. this line is hidden because it travels toward the right side of the engine and the curves around the back of the dist.and under the EHA then up to the bottom half of the fuel distributor. hope this helps!