I know that this has been asked 10000x, but it is difficult to find the one-stop solution. My '84 126 will not shut off and the doors will not lock. However, I recently replaced the vacuum box (shut off valve). Now, the car will shut off after about a minute only if I lock the all of the doors (which I have to do manually). I'm not sure that I installed the vacuum box correctly. How would I know? Does anyone have a vacuum diagram that they could send to me? Finally, after this thing is fixed, would anyone want to buy it? It's an '84 300D Turbo, 240K miles. It has new tires, brakes, shocks. A very dependable car. It runs too well...it won't shut off!
Thanks for the help.