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  #1  
Old 02-19-2008, 12:42 PM
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Fuel reserve light always on

1983 300CD:

Having read several other related posts, it appears that this issue is likely to be fuel sender related. Does anyone have direct experience of this problem and the fix?

Cheers!

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1991 190E 2.6 170k
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  #2  
Old 02-19-2008, 02:25 PM
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I'll trade you for mine, which never comes on.

Think you have to remove/drain the fuel tank.
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  #3  
Old 02-19-2008, 03:11 PM
92 300D 2.5L OBK #59
 
Join Date: Feb 2007
Location: Central FL
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hmmm.. Whats worst light on that doesn't go out or light that doesn't work....

I'll take the light that doesn't work... Got a gauge and odometer. But having that darn light always on.... geeze.
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  #4  
Old 02-19-2008, 03:20 PM
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85 300D 4spd+tow+h4
 
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Fill up on a few tanks of biodisel.
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  #5  
Old 02-19-2008, 04:51 PM
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Sorry to thread jack but my reserve light ('87 124 with 603 enigne) comes on at 1/4 tank and the needle starts to bounce and not read correctly. I have never seen it read below that mark but I usually fill up when the light comes on to be safe so I don't know. Is this right?? thanks
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  #6  
Old 02-19-2008, 08:24 PM
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Quote:
Originally Posted by winmutt View Post
Fill up on a few tanks of biodisel.
What would that do?
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1991 190E 2.6 170k
1995 E320CA 57k
1999 Chevy Tahoe 98k
2000 R1150GS 45k
1983 300CD 178k - sold, but not forgotten
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  #7  
Old 02-19-2008, 08:35 PM
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gimme a low-tech 240D
 
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Location: central ky
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Quote:
Originally Posted by bustedbenz View Post

Think you have to remove/drain the fuel tank.
Nah, the sender mechanism is located under the first aid kit rear deck. Start by pulling and disassembling the sender tube and clean it thoroughly in kerosene bein careful not to break piano wires. And if that fails then attack instrument cluster with electric parts cleaner.

Best method for pulling the sender is have small bucket handy for catching diesel fuel drippings from hitting the seat.

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