Do you know where in the service manuals it would tell me how to do this?
How would you rate this on the messiness scale? And I don't get if, if the
sender is messed up, why does cleaning the fuel gauge (I assume you mean I
should take out the instrument panel?) fix that?
No no. The sender inside the fuel tank. Big messiness.
The tank is behind the back seat and accessed from the trunk. Before you
undertake this you might try some injector cleaner, it might just free
up the float unit and spare you the job. A $5 or $10 experiment.
I'm having a sticking problem with my floater in my tank as well. If memory
serves me correctly, all I need to do is remove the first aid kit bottom panel,
and then remove the sending unit, and then put in the new one. Is this
correct. I have a W126 500SEL
Doesn't the fact that the reserve light works properly mean that the
float is working properly too? Also, since it works OK for the first
3/4 tank, doesn't that prove that it's in the gauge itself and not a
bad connection? (I don't claim to be a MB mechanic, but I am
experienced in troubleshooting electronic systems.)
I have a similar problem on my '91 300SE. Works fine until it gets
to 1/2 tank, then can read anywhere from the correct level to 7/8
full. It never reads below the actual level, to my knowledge.
Is changing the gauge a big deal? Is a replacement fuel gauge
available, or is it part of a larger assembly?
On Sun, 27 Jul 2003 15:37:10 -0400, "marlinspike"
The fuel guage on my '83 380SL has the same symptoms. When the tank is 3/4
full or more there is no problem. However, when it gets lower the guage
sometimes jumps back and forth momentarily then settles again. I have
cleaned the sender with no effect. I have also replaced the sending unit
with a known good one but the guage still is erratic. I have checked the
ground to the instrument cluster and all seems well enough. If anyone
solves the problem please let me know.
----- Original Message -----
Sent: Wednesday, July 30, 2003 10:54 AM
Subject: Re: erratic fuel gauge
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