You explain things extremely well and clearly. I replaced my “Bleeder” on my 2008 S320 cdi two years ago as it was the a cause (the other being poor fitting orange seal) of oil leaking onto the connectors for the intake valve motor which also needed to be replaced. It is very important this “bleeder”, aka PCV valve is functioning on the OM 642 engine. Keep up the excellent presentations.
That part right there is THE main cause of engine oil finding it's way into valley, turbo pedestal, swirl flap motor, & back of oil cooler imho. It's OEM design is completely inadequate for OM642's needs when it comes to reclaiming oil vapor. In fact, I would dare to say many oil cooler jobs that require so much work to change out rubber seals for viton could have been avoided completely if true source of oil in valley was properly identified initially. One of the very best modifications to consider installing is an oil catch can circuit between that CCV (continuous crank ventilation) valve where it comes off back of passenger side valve cover & where it plumbs into turbo fresh air intake nozzle. I'd cut that CCV valve hose right in it's center & splice in an approximately 6' of same diameter tubing capable of handling hot oil & oil vapor. Approximately 3' of tubing is needed to splice into input opening on catch can & another 3' for output flange from catch can to get back to turbo inlet. Pack catch can with stainless steel scrubber pads so that oil vapor pushes through it & can then cool & recoalesce inside catch can instead of turbo inlet where CCV alone would normally return it to recoalesce. Oil that gets into turbo inlet then travels down into intercooler & finds it's way onto swirl flaps inside intake but if turbo flange seal is leaking, oil vapor introduced to fresh air from turbo intake will drip down onto swirl flap motor & cascade down from there onto turbo pedestal & back of oil cooler in valley. Before long, it will appear that oil cooler is leak source when in fact it came from above.
Lots of people think their oil cooler seals are blown when oil goes everywhere at the bottom but it's just too much crank case pressure due to a faulty PCV valv. Much easier and cheaper to replace first before oil cooler seals.
Thanks for the video. Can this cause the following symptom: leak detected in intake system. I’ve done a smoke test but there are no external leaks. I did find a lot of oil in the turbo pipes although the turbo was replaced recently, so I don’t think the oil is coming from the turbo but looks like it’s coming from the breather correct? Thanks again great video
Hi mate thanks for your video, I have got w221 320 cdi v6 om642 while I disconnect the pcv valve pipe from the turbo it blow white smoke 💨? Do you think what do I have to do with that ? also in traffic light while I move i can see there is blue smoke from rea the exhaust during acceleration many thanks
Moro no Brasil tenho uma GLE 350 D 2017 com motor om 642 , fabricada nos EUA , este problema pode ocorrer na minha W 166 ? Agradeço se for possível me ajudar .
change it anyway. it will fail. do preventive maintenance. Oil blowing around ruined my serpentine belt. I smelled burning rubber. then the red battery light came on. then the car temp went high. The belt is nothing but strings now. 169K miles.
You explain things extremely well and clearly.
I replaced my “Bleeder” on my 2008 S320 cdi two years ago as it was the a cause (the other being poor fitting orange seal) of oil leaking onto the connectors for the intake valve motor which also needed to be replaced.
It is very important this “bleeder”, aka PCV valve is functioning on the OM 642 engine.
Keep up the excellent presentations.
Im just about to replace mine on my c320
Did you get any erros after the change?
That part right there is THE main cause of engine oil finding it's way into valley, turbo pedestal, swirl flap motor, & back of oil cooler imho. It's OEM design is completely inadequate for OM642's needs when it comes to reclaiming oil vapor. In fact, I would dare to say many oil cooler jobs that require so much work to change out rubber seals for viton could have been avoided completely if true source of oil in valley was properly identified initially. One of the very best modifications to consider installing is an oil catch can circuit between that CCV (continuous crank ventilation) valve where it comes off back of passenger side valve cover & where it plumbs into turbo fresh air intake nozzle. I'd cut that CCV valve hose right in it's center & splice in an approximately 6' of same diameter tubing capable of handling hot oil & oil vapor. Approximately 3' of tubing is needed to splice into input opening on catch can & another 3' for output flange from catch can to get back to turbo inlet. Pack catch can with stainless steel scrubber pads so that oil vapor pushes through it & can then cool & recoalesce inside catch can instead of turbo inlet where CCV alone would normally return it to recoalesce. Oil that gets into turbo inlet then travels down into intercooler & finds it's way onto swirl flaps inside intake but if turbo flange seal is leaking, oil vapor introduced to fresh air from turbo intake will drip down onto swirl flap motor & cascade down from there onto turbo pedestal & back of oil cooler in valley. Before long, it will appear that oil cooler is leak source when in fact it came from above.
Did you get any errors after changing the pcv?
What a brilliant film you've done. No nonsense
Thanks for the video, excellent!
Lots of people think their oil cooler seals are blown when oil goes everywhere at the bottom but it's just too much crank case pressure due to a faulty PCV valv. Much easier and cheaper to replace first before oil cooler seals.
Thanks , great video. My PCV seems ok , but I am thinking of changing or cleaning it. I may change orange seals also.
Thanks for the video. Can this cause the following symptom: leak detected in intake system. I’ve done a smoke test but there are no external leaks. I did find a lot of oil in the turbo pipes although the turbo was replaced recently, so I don’t think the oil is coming from the turbo but looks like it’s coming from the breather correct?
Thanks again great video
Thank you so much! A6420101891 was my part # but looks exactly the same
thanks for the video. does this normal open or closed
Above the tube its the heater not control unit👍
Hi mate thanks for your video, I have got w221 320 cdi v6 om642 while I disconnect the pcv valve pipe from the turbo it blow white smoke 💨? Do you think what do I have to do with that ? also in traffic light while I move i can see there is blue smoke from rea the exhaust during acceleration many thanks
Hi, is there any difference from the aftermarket?
I live in Brazil, I have a 2017 Mercedes GLE 350 D made in the USA, does this problem also affect the 2017 with OM 642 engine?
Hi can you fit an oil catch can then let the gasses vent to air and blank the hole by the turbo. Would this make the engine run better
Thanks for the video. How often should this part be changed?
Every 60 000 km or 3 years.
Moro no Brasil tenho uma GLE 350 D 2017 com motor om 642 , fabricada nos EUA , este problema pode ocorrer na minha W 166 ? Agradeço se for possível me ajudar .
I'm having the same problem. Need to clean the intake manifold and replace the intercooler seals
do you have this part number for the 2019 sprinter 3500 ?
would this possibly be the cause of an engine RPM fluctuation (up and down) beginning at around 2000 RPM and very constant?
Did you solve your problem?
change it anyway. it will fail. do preventive maintenance. Oil blowing around ruined my serpentine belt. I smelled burning rubber. then the red battery light came on. then the car temp went high. The belt is nothing but strings now. 169K miles.
I replaced mine on my 2008 c-class 320 die0sel as i noticed oil in the air filter duct at the turbo etc,it made no difference whatsoever! :-/
any errors after the change?
@@SuperCadou no.
Thank you