I have DRL's and I have moisture/fogging on the inside of the lens. I had the Dealer do the TSB kit install hoping it would solve the problem, it didn't! Last week I had a service done at the Dealers. Temp. was about 1 C outside but nice and toasty inside the shop. I had the day off so I thought I'd wait. I was there about 2 hours (that's another story), so the car was warm when they pulled it out. When I went to get in I noticed that the head lights were so foggy there was condensation running down the inside of the lens. I went to get the Service Manager to show him, he came out shrugged his shoulders and told me it's very common, not to worry it'll dry up. I asked him if the headlights were covered under my extended Gold Plan Plus warranty......nope headlights are only covered for 3 years or 60k.