Hello all,
I hope that someone can help me... I have 1989 300e auto, for some reason the tacho has stopped working... The speedo works.. the rev counter works.. but the milage stays the same.
Is the speedo cable suppossed to do both speed and tacho? If so is the cable U/S? Or could it be something else? Haynes manuals mention a Tachometer signal (via fuel pump relay) but do not suggest where to find it. Any help would be great.