fuel gauge erratic behavior
Occasionally my fuel gauge jumps left to right and right to left, then resets to correct position.
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@lollygirl, David , Check the wiring/plug by the tank to see if loose/dirty/corroded and if able to check ground wire and loosen and retighten to make good connection, if all looks good the in tank fuel sending unit may be faulty or a bad actuator at the fuel gauge on your dash. . See links below for more info and trouble shooting ideas. Good luck. I hope this helped you out, if so let me know by pressing the helpful button.
https://mercedessource.com/problems/elec...
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How would I know if my fuel gauge actuator is bad? I noticed that the needle was moving as I moved my sending unit float back and forth.
