Is There Easy Access To The Fuel Float Sender - Mercedes Benz SLK Forum

SLK R170 General Discussion SLK 200, SLK 230K, SLK 320, SLK32 AMG

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#1 Old 02-13-2018
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Is There Easy Access To The Fuel Float Sender

2002 SLK320 my fuel gauge doesn't work and the Techron didn't help. I've seen a picture of the gas tank and know the sender is on the top. Before I start ripping out the trunk carpet, I'm wondering if there is some easy way to get at the top of the tank through the trunk without dropping the tank?
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#2 Old 02-13-2018
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I'll ask the specialists:

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#3 Old 02-13-2018
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You can't "drop the tank", it's simply not possible. There is an access hole you can reach once you've got the trunk lining and magnesium cover removed. Be sure your fuel is below 1/4 full and be sure to work in a well ventilated area!
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#4 Old 02-14-2018
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Thanks for the tip on getting below a quarter tank, figure I'd better disconnect the battery as well. Wonder if the old one is repairable as in the float having a hole. I find used ones for around $75 but the gasket new sells for $30. There is also a NOEM for around $89, but I'd hate to have to adjust it or something, have to see if it comes with the gasket. That magnesium cover should make a nice addition to the fire ball. ;-)
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#5 Old 02-14-2018
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I've never had to repair one but from what I've read here the rheostat is the usual culprit, and repairs are short-lived. I'd try a few used ones from the yard first (if you can find them).
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#6 Old 02-14-2018
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Removing and installing fuel level gauge sensor.pdf
http://docdro.id/JrobKpt
Hope this help, looks like you need a special tool.
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#7 Old 02-14-2018
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Removing and installing fuel level gauge sensor.pdf
http://docdro.id/JrobKpt
Hope this help, looks like you need a special tool.
The special tool does make it easy, but it's also possible to do without: insert two small screwdrivers into the holes (top and bottom in your picture) and then a third large screwdriver between them to turn the fitting.
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#8 Old 02-14-2018
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Could make one out of a scrap of bar aluminum with 3 bolts (?) . Might be a little bit steadier than trying to be three handed





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