06 cdi e320 no leak that I see . diesel fuel smell when parked after use.... seemed to be using a little more fuel.....seems the smell is coming from rear but could be mistaken only 62k mi any help??

might be a vent,or return line,or cap.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

You may want to pull off the plastic engine cover and look where the injectors meets the head. Or look up "black death" a fuel leak issue with 05/06 CDIs. I understand you smell it from the rear of the vehicle but a quick check there would not hurt and maybe save you some agony if you catch that in it's early stage even if its not the cause of the fuel smell.

"Black Death" HAS been found as early as 40K miles !

https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=06+CDI+Black+Death+onset+mileage?

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'84 300SD sold
124.128