Many of you know the problem with the oiling air intake of the OM642 which is a classic misconstruction for me. The T-piece made of silicone, that there is now also in the turbo center, however, has in addition to the very good sealing also a disadvantage. Specifically it is about the air turbulence, once at the transition from antler to a T-piece and on the other hand at the air entrance to the turbocharger where on edges said turbulences result the flow technically undesirable are. An opponent of the T-piece pointed me to this problem long time ago and thus also motivated my ambition to find a solution. The solution is now installed and is as I find better than the original, since there are no more turbulences and yet everything is dense by the further use of the T-piece, which Mercedes unfortunately did not get. Just look at it.