All modern diesels are CC vented by blow-by and not some type of tube. Our MBs & our '02 Jetta TDI is the same way. Where you run into trouble is when you plugg it at the topside and if I read it right you haven't done that so you are safe there. I ndon't think much of the swirl design on my 240 or the ones I've seen on 300's, but it's better then nothing.

The problem with your setup and our older MB's is there is no anti run on flap in the intake as in the newer cars such as our VW. The problem with the flap in the VW is soot will build up and make it stick open and the one time you need it, the damn thing won't work. That's happen a number of time to guys on the VW TDI club forum. Generally the VW drivers were warned by engine not dying as soon as key was turned off and just thinking gassers that it needed some tunning. Ooops!!!

The problem with your setup vs my stock system is the stock seperator does help remove some of the oil, just noot enough. As car gets to using oil it's not thought of by most people as something that might cause a real problem and thought as something causing less power when the reverse is true, oil is fuel and more fuel means more engine speed. The 240 system does do a better job at preventing the run on then you might think also, but even it is rather poor at the job.

Now as far as sorry metal tube and the O rings that seal it, throw that crap away and use a nice clear tube to run from CCV, or more correct term oil/air seperator, to the sump nipple. That was my first mod the the car and it got rid of the oil leaks and dirty air to intake. Pictures tomorrow if anyone want to see that mod, cost me less then $2 for parts. I think it was 9/16 ID tubbing from hardware store, and it has been on the car with no problems for about 6000 miles and 6 months,

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'10 Chrysler T&C Stow-N-Go White. Grandpa's ride.

'13 Chrysler 200 Touring Candy Red. Grandma's ride.

Age and cunning will always over come youth and vigor.