[axel24]

Hey guys recently installed a VRSF downpipe catless on my 540, I let someone drive my car to see how it sounded and noticed this like light grey/blue smoke whenever the car is under load and coming to a stop but then it will go away and will only happen sometimes after stepping on it hard, car idles fine no constant smoke when driving it normal or idling, car is not tuned everything else is stock, new to the b58 platform any ideas on what it is would be appreciated thank you!

[CucoM]

I have the same problem. I still can't find a fix. I already did the PCV diaphragm but either I got a bad one or it's something else. I got a ross racing catch can that I will be installing soon and I will report back to see if that helps. but if anyone else has some info I would appreciate it as well.

[stealth540]

Im having the same exact issue after installing a vrsf down pipe on my 2017 540i it smokes only after I floor it a couple times and only smokes after coming to stop smelling like something’s burning too I took it to a shop they check my turbo and said it was good I am loosing antifreeze tho after refilling it not to long ago I changed the pcv and the problem still continues have you found a solution?