1993 Mercedes Benz 300sd



May, 13, 2009 AT 4:05 PM

Electrical problem
1993 Mercedes Benz 300sd 6 cyl Two Wheel Drive Automatic 72000 miles

Hi. My 1993 Mercedes 300SD is having a speedometer/odometer malfuntion. The car has been working fine but when I started it yesterday, the ABS light did not go out. I then noticed the steering was harder like the power assist wasn't working. Then the speedometer and odometers stopped working. The analog fuel efficiiency meter also is not working. I checked the fuses but all or OK and I couln't find any fuses in the diagram that control any of these functions. Is there a relay separate from the fuse boxes that control these functions and if so, where would it be located?
Thanks. Rick

1 Answer


Dr Loot

May, 18, 2009 AT 12:51 PM

You are describing a malfunction that is usually caused by dirty battery cables, or as bad ground, recheck all of your connections and let me know.

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