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

Smell of fuel

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Old Feb 7, 2022 | 06:24 AM
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Smell of fuel

Hello all,

So recently my 2007 s550 with 173k miles has started to develop a problem which seems common this model. At first the smell of gasoline in the cabin was related a faulty purge valve in the engine I thought but since replacing it the valve I noticed the smell of gasoline is still there. I have searched on these forums and noticed that the charcoal canister could be the issue. I am DIY type of guy when it comes to a lot of stuff on this car and came across many videos on YouTube taking apart the canisters and replacing the internals of it. With that said I have ordered new activated charcoal and also foam to be used as the filter. Another issue that might be related to this the fact I can’t complete fill up my gas tank to “F”.
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Old Feb 7, 2022 | 11:41 AM
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2010 E550, 273 Engine: 2012 S550, 278 Engine
Originally Posted by clb0099
Hello all,

So recently my 2007 s550 with 173k miles has started to develop a problem which seems common this model. At first the smell of gasoline in the cabin was related a faulty purge valve in the engine I thought but since replacing it the valve I noticed the smell of gasoline is still there. I have searched on these forums and noticed that the charcoal canister could be the issue. I am DIY type of guy when it comes to a lot of stuff on this car and came across many videos on YouTube taking apart the canisters and replacing the internals of it. With that said I have ordered new activated charcoal and also foam to be used as the filter. Another issue that might be related to this the fact I can’t complete fill up my gas tank to “F”.
You need to check that your gas tank lids are not cracked or some other reason with it. Should be located under rear seat.
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Old Feb 7, 2022 | 01:20 PM
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I would also check the fuel filter and fuel pump under the rear seat for any leak.
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Old Feb 7, 2022 | 01:54 PM
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2010 E550, 273 Engine: 2012 S550, 278 Engine
Originally Posted by clb0099
Hello all,

So recently my 2007 s550 with 173k miles has started to develop a problem which seems common this model. At first the smell of gasoline in the cabin was related a faulty purge valve in the engine I thought but since replacing it the valve I noticed the smell of gasoline is still there. I have searched on these forums and noticed that the charcoal canister could be the issue. I am DIY type of guy when it comes to a lot of stuff on this car and came across many videos on YouTube taking apart the canisters and replacing the internals of it. With that said I have ordered new activated charcoal and also foam to be used as the filter. Another issue that might be related to this the fact I can’t complete fill up my gas tank to “F”.
You need to check that your gas tank lids are not cracked or some other reason with it. Should be located under rear seat.
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Old Feb 7, 2022 | 07:25 PM
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These were parts replaced less than 10k miles along with gaskets. The fact that my car isn’t allowing me to fill the gas tank all the way up leads me to believe that it has everything to do with the charcoal canister issue.
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