One problem related to crankcase (pcv) has been reported for the 2010 Volkswagen CC. The most recently reported issues are listed below.
The dealership said pcv valve went out and caused rear main seal to break, which is the reason my check engine light came on. The car is now leaking oil. The pcv valve appears to be fine, nothing is stuck, nothing cracked, the gasket is not damaged either. The car now has 80k miles on it and im stuck with $1800 repair bill for the rear main seal.