2010 ML 350 fuel smell

I have a fuel smell in my garage only after a complete fill up.  I checked the fuel pump seal under the rear seat, all is well there.  It actually seems that the smell is coming from the drivers side just behind the front tire.  I did check the fuel line and rails on the top side and all is well there as well.  The smell in the garage goes away after burning off about 3 gallons of fuel from the full tank.  

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MBFanatic made a comment.
7 months 4 weeks ago

I know you said the smells comes from the driver side behind the front tire, but have you checked the fuel tank filler neck? I am suggesting this becasue you mentioned that the smell goes away after burning 3 gallons.

 
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martyb made a comment.
7 months 4 weeks ago

I found the leak, it’s the gasket on the sending unit under the rear seat.   New one coming today, thankfully a simple fix.  Removing the cover that is sealed to the floor to access the unit is not an easy jog though!

 
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MBFanatic made a comment.
7 months 4 weeks ago

I am glad you found the problem. Would you mind taking a few pictures and posting them? Here is the link to share a DIY Post.

 

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