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-   -   84 300d gauges (https://mercedesforum.com/forum/diesel-discussions-33/84-300d-gauges-58760/)

Clanky 08-06-2018 01:23 AM

84 300d gauges
 
just brought a 84 300d and the fuel gauge and temp gauge read higher and fuller in relationship to each other the faster I go and the longer I drive. They also bounce around a lot. Car shows no sign of overheating but the gauge is way wonky

PelicanParts.com 08-06-2018 03:13 PM

Hello and welcome to the forum! That could be a sensor malfunction. Have you checked them?

Clanky 08-06-2018 07:38 PM

Bothbthe coolant gauge and fuel gauge rise and bounce together and seem to get hogher the faster I go

Clanky 08-11-2018 01:15 AM

Bump
 
Anyone have any ideas

Bundye 09-02-2018 11:23 PM

Try running a new ground from the gauges
 
My 240 was doing the same thing. I attached a ground wire on each of the two screws that stick out of the back of the instrument panel from the temp and fuel gauge and attached the other ends to the cluster of other wires grounded on a screw behind the dash. Completely solved the issue. Let me know if you need a better description. I can also provide some pictures if that helps.

Al

Clanky 09-03-2018 01:38 AM

Gauges
 
I’ll try that this week. Thank you. I hate not having gauges


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