My car has a gas smell. Any ideas what may cause this?

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2008 S550
2010 GLK350
1997 E420 (retired)
2005 CLK500 (retired)

Where and when does it smell? From engine compartment, inside cabin etc.

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1989 300CE

seems to be engine compartment. Certainly not inside the car. Thanks!!

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2008 S550
2010 GLK350
1997 E420 (retired)
2005 CLK500 (retired)

I went in the garage and sniffed around. Strongest smell from the left rear wheel arch. No smell in the car.

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2008 S550
2010 GLK350
1997 E420 (retired)
2005 CLK500 (retired)

That is where the fuel pumps are located.

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http://i193.photobucket.com/albums/z...-RESIZED-1.jpg
1991 300E - 212K and rising fast...

Thanks! I believe I need to remove the rear seat to have a look. Let me know if you have other information...

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2008 S550
2010 GLK350
1997 E420 (retired)
2005 CLK500 (retired)

The fuel pump is located inside the left side of the tank. Go ahead and remove the rear seat bench though. You can then remove the access covers for the pump/level senders. It's not uncommon for the level sender seals to leak with age.

Thanks a bunch! I will look into it tonight. Any reason the smell is outside the car and not inside? That is what is throwing me off.

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2008 S550
2010 GLK350
1997 E420 (retired)
2005 CLK500 (retired)

Correction. The fuel pump is inside the tank on the right side. Sorry for the error.