I noticed a fuel/oil/coolant type smell coming from my E320 while at stop lights. When I got home, I popped the hood and investigated to see if anything was leaking in/around/under the engine compartment... Nothing. So I figured it was just because it was hot and humid. WRONG!

This morning (Friday, July 19th) I backed out of my driveway to head to work and noticed a puddle. I stopped and smelled it and it was gas (Mind you, I just filled up Thursday morning ($65.00)) When I got to work, I looked under the rear of the car and noticed a constant drip (1, every 2 seconds or so) on the passenger side just infront of the rear wheel.

Anyone have an idea of to what is broke/cracked/rusted? Fuel sending unit? Hose? Tank (I hope not!)? Or a shot fuel line?

I plan to investigate it further on jack stands tonight to see if I can pinpoint the source, just want to get ideas from fellow Mercedes people also. I'm now down to a 1/4 tank and very flipping frustrated!