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Fuel Smell Inside Cabin

 
Old 06-18-2014, 03:49 PM
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Fuel Smell Inside Cabin

Sorry guys, hate to beat a dead horse as this has been covered many times before. All of the issues I saw on the board was for 2003-2004 and E55 or E63s. But I have yet to see any discussion regards about 07-09 E350 or E550s.

My questions are, has the MBUSA issued an recall for this issue? If not, what exactly needs to be replaced and how much will it cost? I can barely stand the smell any more and hate to even fill up my gas.

Any help is greatly appreciated!!
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Old 06-18-2014, 04:12 PM
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You may have a bad fuel pump seal or fuel filter seal or little crack in the hoses(attached to them),

they are under the rear seats...!!

Fuel Smell Inside Cabin-fuel-pump-smell-1.jpg

Fuel Smell Inside Cabin-fuel-pump-smell.jpg

ZAYED,,
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Old 06-18-2014, 05:20 PM
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Take it to the dealer and find out. Don't play with gas inside the car.
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Old 06-18-2014, 05:55 PM
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Originally Posted by vettdvr View Post
Take it to the dealer and find out. Don't play with gas inside the car.
+1,

If you not expert with fueling,,

bad idea if fingers will be closer...

ZAYED,,
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Old 06-18-2014, 11:36 PM
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I had this issue in my car, and it was the sending unit (driver's side). Before I changed it, I would fill up tank up to 3/4 only, and this way I avoided having the fuel odor and fumes insides car.

To be on the conservative side, start by removing the rear seat bench and take off the round cover that covers the sending unit. If you see gas on the unit, it could be the unit is leaking and needs to be changed. If gasoline is only on bottom of unit, it could be a bad seal which you could replace yourself if you're a handy person.

Last edited by Stuttgarten; 06-18-2014 at 11:40 PM. Reason: Add attachments....
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Old 06-19-2014, 12:48 AM
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Originally Posted by Pekkle View Post
Sorry guys, hate to beat a dead horse as this has been covered many times before. All of the issues I saw on the board was for 2003-2004 and E55 or E63s. But I have yet to see any discussion regards about 07-09 E350 or E550s.

My questions are, has the MBUSA issued an recall for this issue? If not, what exactly needs to be replaced and how much will it cost? I can barely stand the smell any more and hate to even fill up my gas.

Any help is greatly appreciated!!
i had exact same problem...
replaced fuel sending unit/pump and few other minor stuffs...
is ur car out of warranty?
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Old 06-20-2014, 07:19 PM
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Thanks guys for all the suggestions, I am going to try to remove the back seat first and see what's going on. (Like I know what I am looking at... lol)

How much did you guys paid to have it replaced? Yeah, my car is way out of warranty. I currently have 115k miles on it.
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Old 06-20-2014, 08:09 PM
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We got ours replaced under warranty a few months back.
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Old 06-23-2014, 07:54 AM
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Trying not to give you a heart attack, but, if like mine, you'll end up replacing the whole fuel tank. The dealer first replaced the sending unit seals twice with no change in symptoms.


Frist, remove the bottom of the back seat, there are two tabs under the cushion that will allow you to remove it. You will then need to remove the access pannel that covers the sending unit, behind the driver's seat, which is round and has about 8 or so sheet metal screws in it, they're about 1/4 or 5/16 in size.


If you see gas puddling up on top of the sending unit, mine had about 3 cups worth, get it out of there...I used a shopvac, because there was too much to soak up with rags. Once it is dried up, see if you can tell where it's leaking from. If it's coming up from the bottom, it's more than likely the seals, if it's leading from up and behind (towards the back of the car) into the trough that the sending unit sits in, it's probably a cracked fuel tank.


If MB USA doesn't cover the cost of the fuel tank, like they did in my case, you'll end up spending $3K to fix this.
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Old 06-23-2014, 10:42 AM
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Originally Posted by Pekkle View Post
my car is way out of warranty. I currently have 115k miles on it.
Note if your vehicle is PZEV in CA warranty coverage runs 15 years/150,000 miles (whichever comes first) - https://mbworld.org/forums/4832241-post5.html
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Old 06-23-2014, 04:49 PM
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Mine is not a PZEV, so I had to cover all costs, which were not too bad, coz I had repairs done at an INDY. Sending unit with sensor and adaptor cost me $350 from dealer. Seal was $25 online. You probably could get parts cheaper on "Fleabay" I paid an INDY $120 for installation, but I took car in with seat and sound barrier taken out, and area around tank's sending unit covered with shrink wrap. It helped making sure while he worked on car he did not place my seat on his "greasy" garage benches/floors, and that he did not leave smudges on doors or car interiors.

If your car is a PZEV, then dealer has to cover it under warranty.
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Old 06-23-2014, 05:37 PM
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Originally Posted by vettdvr View Post
Take it to the dealer and find out. Don't play with gas inside the car.
I was about to say that it really doesn't take any special skills or knowledge to replace fuel pump related components, and you were being overly cautious.
. . . . . .
Then I saw this:
Originally Posted by seattleducati View Post
. . . .
If you see gas puddling up on top of the sending unit, mine had about 3 cups worth, get it out of there...I used a shopvac, because there was too much to soak up with rags. . . . . .
And thought, maybe I am wrong.
Since it appears that no one mentioned it is a bad idea to suck fuel into a closed container, while mixing it very well with air, and topping off with a brush type AC motor; Maybe knowing not to do so is a special skill?
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Old 06-24-2014, 08:40 AM
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Old 06-24-2014, 11:11 AM
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Originally Posted by N_Jay View Post
I was about to say that it really doesn't take any special skills or knowledge to replace fuel pump related components, and you were being overly cautious.
. . . . . .
Then I saw this:

And thought, maybe I am wrong.
Since it appears that no one mentioned it is a bad idea to suck fuel into a closed container, while mixing it very well with air, and topping off with a brush type AC motor; Maybe knowing not to do so is a special skill?

There is so much wrong with your comments about shopvac'ing up gas I don't even know where to begin. Maybe it's just best to ignore your comments for those who read that. Guess what? I still have all of my fingers, I'm not missing any eyebrows and my shopvac didn't blow up like a pressure cooker bomb . HOW COULD THAT BE? I must have defied physics and chemistry in the alternate universe you live in. Before you give advice on a subject you might want to know something about it...just a suggestion.


Anyways, the point of the subject, if you can determine where the leak is, roughly, coming from you can figure out if it's a cracked gas tank or if it is simply a fuel sending unit seal.
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Old 06-24-2014, 12:00 PM
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http://ehs.research.uiowa.edu/spill-...stible-liquids
http://www.ford-trucks.com/forums/48...e-liquids.html

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Old 06-25-2014, 04:05 PM
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Originally Posted by Sttutgarten View Post
Mine is not a PZEV, so I had to cover all costs, which were not too bad, coz I had repairs done at an INDY. Sending unit with sensor and adaptor cost me $350 from dealer. Seal was $25 online. You probably could get parts cheaper on "Fleabay" I paid an INDY $120 for installation, but I took car in with seat and sound barrier taken out, and area around tank's sending unit covered with shrink wrap. It helped making sure while he worked on car he did not place my seat on his "greasy" garage benches/floors, and that he did not leave smudges on doors or car interiors.

If your car is a PZEV, then dealer has to cover it under warranty.
So all you did just replaced parts and the problem solve. You don't have to replace with new gas tank like seattleducati state on post # 9.
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