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I have a 1980 300D and the fuel gauge doesn't work. It worked when I bought it, then after awhile it would give a fairly accurate reading, but the needle would sometimes move around erratically and then go back to a stationary position. Now it doesn't work at all and every day is an adventure. Can anyone suggest what I might be able to check/do? I remember hearing once that there's rarely ever a problem with the thing in the tank that measures the fuel level (e.g.-getting stuck in one position, etc.), and I have a feeling I may have to open up the dash.<br>
 

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Same problem... Any sugestions?

I have the same problem with the fuel needle jumping around and not giving me an accurate reading. Maybe this is a common problem with these cars
 

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G320 & E500
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Guage

Under the Medical Kit on the rear dash, you can access the sensor. You can check if its stuck or has sediment in the hole. You can find these in a junk yard for $5.
 
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