So my 2004 c230k started filling up with exhaust the other day and when I checked under the hood I noticed this rubber hose to be chewed up. It looks like a pretty easy fix, problem is that I dont know what part this is to be replaced. Any help identifying this would be greatly appreciated. Thanks!

 

It's called "shaped hose" and is part of the crank case ventilation. Part number A 271 016 04 81