It is a very common problem on the Jeep CRD; oil entering the turbo inlet hose from the CCV over time rots the rubber of the inlet hose and causes it to fail as yours has, many on this forum have experienced the same problem...
One of the best solutions to keep most of the oil vapors out of the turbo inlet hose is to install a ProVent filter in the CCV hose an many on this forum have done...
For more information on this subject:
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=80491&hilit
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Supporting Vendor and Moderator of LOST05 Jeep Liberty CRD Limited 
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