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Old Sep 16, 2014 | 12:38 PM
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C240 w203
fuel problems
My c240 w203 model fuelpump seems to stop working when tank reaches 1/4 mark, what can I look out for?
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Old Sep 17, 2014 | 12:00 PM
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'99 and '05 E55 AMG
Do a search for "Mercedes fuel tank swirl pot". Your tank possibly has debris in it and it has filled the swirl pot so the pickup can no longer draw fuel at low levels.


www.benzworld.org/forums/r-c107-sl-slc-slc-class/1663231-fuel-tank-strainer-fuel-tank-insides.html
Last edited by bbirdwell; Sep 17, 2014 at 12:04 PM.
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Old Sep 17, 2014 | 12:12 PM
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C240 w203
I wish that was the case, but the tank is spotless, i took out the pump and every thing, maybe if I understood the mechanics of the pump, I could determine the problem
Last edited by gertvannermerwe; Sep 17, 2014 at 12:20 PM.
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Old Sep 18, 2014 | 02:06 PM
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C240 w203
Is it possible that a cheap fuelfilter can cause these symptoms???
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Old Sep 19, 2014 | 06:55 PM
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mazda mx5
Did you check if at 1/4 left in the tank when the car dies if there is actualy fuel in the fuel pump pot ?
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Old Sep 20, 2014 | 05:15 AM
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C240 w203
Fuel seems to accumulate only on right side of the tank, no fuel on the left side
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Old Sep 20, 2014 | 03:46 PM
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From: lebanon
mazda mx5
Then mate try and get a gd fuel filter .. theres a valve in the fuel filter than sends excess fuel back into the tank .. it might be ur problem .... might also be a weak pump ... but try the filter first
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Old Sep 20, 2014 | 04:34 PM
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C240 w203
Originally Posted by mohd.awaly
Then mate try and get a gd fuel filter .. theres a valve in the fuel filter than sends excess fuel back into the tank .. it might be ur problem .... might also be a weak pump ... but try the filter first
I checked the pump. if my gauge is correct, it pumps at 2 bar, that is now directly from the pump,......any idea what the pressure should be??
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