W126, BENZ AID - COMMON QUESTIONS AND ANSWERS

Have an intermittent problem when starting this car. Car starts without problem 70% of the time. Instant ignition, idles perfectly, impossible to tell if engine is running. Other times the starter must be engaged for ten or more seconds before the engine even tries to start. Sometimes 3 or 4 attempts must be made before the engine fires. When it does finally start at these times, ignition is slow and it seems to be firing one or two cylinders at a time before it finally catches and idles properly. Problem arose immediately after having a new fuel distributor installed.

Trying to replace the regulator slide on a 83' 126. I have everything off and the regulator is unbolted and loose, but I can't seem to fiqure out how to disconnect the wireing. It seems to be hard wired into the regulator and unhooking the switch still leaves wires connected. Please help, before I start splicing.

Thanks again for the help!!!!

I replaced a failing differential in a 1983 300D which had a 3.07/1 final drive ratio with a w126 differential with a 2.47/1 final drive ratio. RUNS GREAT!!! Of course, what the tranny-driven mechanical speedometer-odometer now registers is about 80% of what the actual speed and mileage are. I would like the instruments to reflect actual speed and mileage.

In the original vehicle, an electrical speed sensing unit on the differential connects to the instrument cluster.