1988 300E Battery Drain
My car which went from no start to running great for a month after I put in your Ultimate Tune Up Kit has suddenly been experiencing a dead battery. I installed a new battery when happened but the first morning the new battery was dead. I checked the forum and found and followed directions for trouble shooting an 84 300SD battery drain. I recharged the battery, disconnected the battery ground cable and put a test light between the ground cable and the battery negative terminal. The light lit brightly indicating a current drain. I disconnected the alternator plug and again the light lit.