1971 220 fuel gauge not working - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 08-05-2013, 12:57 PM Thread Starter
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Date registered: Aug 2013
Vehicle: 1971 mercedes 220
Location: Gales Creek, Oregon
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1971 220 fuel gauge not working

Hi All
I just bought my first Mercedes on saturday. 1971 Meecedes 220, gas engine. I am very excited to have saved this car from the scrap yard where the previous owner was gonna send it. The car had been sitting for more than a year. A new battery new, spark plugs, and adjusted the point and drove it home. Now the first thing I need to sort out is that the fuel gauge does not function. I don't know were to start on trouble shoting so any advice will be appreciated.
Thank You
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post #2 of 3 (permalink) Old 08-06-2013, 06:27 AM
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Date registered: Mar 2013
Vehicle: 1971 220D
Location: Fincastle, VA
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Is it on "E" or "F"? How about the other instrument panel functions? Lighting? Signals? High beams? The fuses are notorious for corroding, so I 'd start by pulling all of them out and giving them a good Dremelling. Then that'll leave the sensor and the gauge...
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post #3 of 3 (permalink) Old 08-06-2013, 07:36 AM
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go in trunk , at middle remove the round plastic plug , unplug wires , turn key on , with a jumper wire connect 2 pins together , when you have the right choice [ 3 wires ] the gauge in dash will jump to full , if that is the case , the unit in tank is bad .also , pop the cover on plug to see if you have a broken wire .[ seen a few ]
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