20 10 Jetta partner, the throttle leaks oil, help!

I know what is going on. The leaked engine oil comes from engine oil and is transported through the pipeline of the positive crankcase ventilation valve. Maybe it comes from the thick pipe of the positive crankcase ventilation valve. It may be that the two oil drain holes at the bottom of the positive crankcase ventilation valve are blocked. Take it out, clean it and have a try.