I'm not a tech, but from my understanding, it would most likely be the sending unit and not the guage.
I believe it wouldn't be a major ordeal to change the gauge itself, but I would think getting the sending unit test and replaced if needed should solve the problem.
Wait for a tech to answerthis one. i think it's probably the sending unit.
Metallic Black (Blue Flaked) on Parchment
Black Grille Insert
17" AMG Monoblocks or EVO II's
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