Help! There is smoke coming from the under the oil cap and a burning smell on 2003 Volkswagen Passat

There are no check engine lights or error codes. I have noticed a burning smell for the last few months but after driving a short distance today, the car was smoking pretty bad from underneath the oil cap.

Asked by for the 2003 Volkswagen Passat
1 answer 2 comments
how many miles on the veh?
127,000. Had an oil change 1000 miles ago.
possible plugged pcv system