The “cold climate” version is BS. The manufacturer merely wraps the CCV body with 2 pieces of foam insulation. All that does is make it longer for the CCV body to get up to temperature. Plus it’s a real PITA to install it.
To prevent the CCV from clogging up drive the car at highway+ speeds for at least 20 miles on a weekly basis. Btw, the engineer who designed the CCV had been fired by Audi before coming to BMW.