S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Refueling problem on S550

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Old Dec 13, 2009 | 08:23 PM
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Roger lin's Avatar
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Refueling problem on S550

hi all , i had a 2008 s550 recently got a strange problem with refueling gas , i could't got fuel tank fully at a time by fuel gun ( the fuel gun alway cut off during adding )

anyone else experience any of the above issues ?



Roger
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Old Dec 13, 2009 | 08:37 PM
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Barolo S550, 2010 E, 1966 SL & others.
A few of us have seen this. Here was a thread about it at one time:

https://mbworld.org/forums/new-s-cla...ueling-up.html

I had mine repaired with details/help from the original poster of that thread.

It ended up being the charcoal canister valve on both of our cars. Now both are 100%.
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Old Dec 13, 2009 | 11:17 PM
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Originally Posted by MichaelB.
A few of us have seen this. Here was a thread about it at one time:

https://mbworld.org/forums/new-s-cla...ueling-up.html

I had mine repaired with details/help from the original poster of that thread.

It ended up being the charcoal canister valve on both of our cars. Now both are 100%.
Thank you very much for your reply MichaelB , I have replced the charcoal canister (as attached photo ) ,the symptom seem to be improving but the problem still exist !
Attached Thumbnails Refueling problem on S550-20091214-006-.jpg  
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Old Dec 13, 2009 | 11:43 PM
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2007 S550 2009 SL550
I have recently been seeing the same problem as well.
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Old Dec 14, 2009 | 12:21 AM
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i have no idea with this problem ,one of mine friend working in the Benz dealer as a technician ,he told me that could be somewhere jam from fuel tank neck to fuel tank ,is that possible ?


thanks for attention ,


Roger
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Old Dec 14, 2009 | 05:50 PM
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Barolo S550, 2010 E, 1966 SL & others.
The fuel neck is absolutely tiny for our tanks. I had an S-Class tank out of the chassis and a group of us marveled over the lack of overall diameter of the fill tube. If it was crushed even a little bit it would cause quite the flow problem. However the neck is pretty well guarded by the wheel well liner etc.

Try another gas station fill rate and see if that makes a difference.

Last edited by MichaelB.; Dec 14, 2009 at 05:59 PM.
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Old Dec 14, 2009 | 06:10 PM
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Have seen this a few times...the whole fuel tank replacement cured it. The neck is part of the tank on a 221.
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