Mercedes-Benz Forum - View Single Post - Fuel sender repair
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post #35 of (permalink) Old 05-12-2019, 02:28 PM
BenzWorld Junior Member
Date registered: Nov 2018
Vehicle: 1987 560sl (chrome bling now removed), 2002tii, FJ40, FJ62, M5
Location: Richmond, VA
Posts: 8
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
On my '87 560sl, I was getting erratic fuel level readings. There was no reading when first started. The gauge would then activate after about 5 minutes of driving. The gauge activated more quickly when full of near full. It took longer the lower the tank. So, I took out the sending unit and it looked brand new. I went ahead and took it apart, which was very easy. Again, it looked brand new inside. The thin resistance wire was broken. I tried to re-solder the wire to the bottom connections, but with no luck. The soldering was so hard on that tiny tip and tiny wire, that I ended up melting the plastic of the bottom piece.

Does anyone have a picture that shows how the resistance wire is routed? Is it soldered at the bottom, running up through the sides of the float, and then a continuous loop through the top piece and the two bent loops?

If I can find the right wire, it might save me the $200 part.
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