I changed the seal at the same time I installed the breather. Not positive if the seal replacement or the cam chest vent stopped the leak but now it is try.

I put 75 miles on it today with lots of 4-5k rpm driving and got oil and condensate in the catch can but it was the first drive that got the motor hot enough to open the thermostat and get oil flowing through the cooler. Getting the air out of that system might have caused a burping of the system because the thermostat opened on the freeway at 70mph.

Subsequent trips will tell. Oddly enough the oil level hardly budged.

[Linked Image]


[Linked Image]

At least the stuff in the can did not go into the Venturi.

The light at the end of the tunnel is actually a train. 2019 M3W