Mine started last week. The weather was 75 degrees and low humidity and bright sunshine. So I was driving with A/C off front windows down and sunroof open driving stop and go traffic at an avg of 35 mph for about 15 to 20 minute drives. The condensation starts after I park and the the engine bay starts cooling off which takes more than 6 hours. I think the heat dissipation of the twin turbo engine is over taking the vent process of the headlight housing. My rubber seal attached to my hood melted to the engine bay and ripped through the plastic clips when I opened the hood to check things out. Maybe my headlight housing seals have been compromised. Heat transfer is a complicated phenom and can cause havoc on rubber, plastic, etc. I have the dealer checking everything. Cooling fan operation, electronic thermostat operation, A/C on and off causing problems. My engine temperature gauge has been normal. I hope they find the root cause. Fingers crossed!