Porsche Recall

[saucerman]

Cayenne and Panamera S hybrids from 2011 to 2012.

more news here

[Phokaioglaukos]

"The problem was discovered in March of 2013 when customers complained of fuel odor, according to the NHTSA documents. VW investigated and decided Jan. 12 to do a recall."

[cjbcpa]

The notice in the link references leaks due to vibration.

My 2011 Golf TDI was recalled due to a problem with fuel lines leading to the injectors cracking from vibrations caused by a sympathetic resonance. The cure was to install tightly fitting pieces of styrofoam onto the lines to dampen/prevent the vibration. I'm speculating that all these engines use a similar direct injection design and the high pressure fuel pumps are the source of the vibration.