Throwing a P0456 code
#1
Super Member
Thread Starter
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i have an '03 e320 and i just started throwing this code yesterday
the p0456 is an evap leak, i believe it is a minor but i have to double check again.
i have the gas smell in the cabin like the AMG owners (LINK if you're unfamiliar) i have had this smell in the car for a while now, but the code just came up yesterday.
was wondering if anyone other than AMG owners has had this issue, and/or has thrown this code before?
im hoping its something as simple as the gas cap, but the fuel smell in the cabin i feel has become more intense this last month or so. i do not daily the car my wife does and she says that she has gotten used to the smell so she doesnt notice it.
any ideas? i hear the back seats are super easy to pull up and check on the sending unit
any help appreciated
the p0456 is an evap leak, i believe it is a minor but i have to double check again.
i have the gas smell in the cabin like the AMG owners (LINK if you're unfamiliar) i have had this smell in the car for a while now, but the code just came up yesterday.
was wondering if anyone other than AMG owners has had this issue, and/or has thrown this code before?
im hoping its something as simple as the gas cap, but the fuel smell in the cabin i feel has become more intense this last month or so. i do not daily the car my wife does and she says that she has gotten used to the smell so she doesnt notice it.
any ideas? i hear the back seats are super easy to pull up and check on the sending unit
any help appreciated
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#2
Newbie
I either had that code or one like it on my 2009 E350 - very small leak based on what the code reader said.
Thought it was the gas cap, but once the dealer diagnosed it under warranty, it ended up being a crack in the fuel filler neck.
Ron
Thought it was the gas cap, but once the dealer diagnosed it under warranty, it ended up being a crack in the fuel filler neck.
Ron
#3
Super Member
Thread Starter
yea the dealer told me that was a possibility im hoping since its a minor leak that its nothing that has to do with the tank, i would really love to not have to replace the tank.
i pulled the seats up and there is for sure a leak around the sending unit, the actual unit looked to be in good shape so im thinking maybe just the gasket?
looks like it starts here
![](http://i66.photobucket.com/albums/h268/chinkyeyedemcee/141ba892.jpg)
then seeps down more, this was only about an hour or so into the fill up so not sure how much actually leaks through the sending unit area
i pulled the seats up and there is for sure a leak around the sending unit, the actual unit looked to be in good shape so im thinking maybe just the gasket?
looks like it starts here
![](http://i66.photobucket.com/albums/h268/chinkyeyedemcee/141ba892.jpg)
then seeps down more, this was only about an hour or so into the fill up so not sure how much actually leaks through the sending unit area
![](http://i66.photobucket.com/albums/h268/chinkyeyedemcee/a6f346ec.jpg)
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#8
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'71 Pinto
#9
Super Member
Thread Starter
im starting to think that the tank does not need to be replaced cause the indy shop i took it too said it was leaking from the top, doesnt make much sense to me. i think that it is just leaking from that sending unit where it goes into the tank.
those are much better prices than what i was quoted at the shop! thanks konigstiger! im jut going to do the labor myself hopefully save me some money
those are much better prices than what i was quoted at the shop! thanks konigstiger! im jut going to do the labor myself hopefully save me some money