The sunroof on my 2012 CC has leaked not once but twice. I believe it's lead to further electrical issues and lighting issues with my car but VW denies this despite having to replace my entire electrical panel about 6 months after the first leak and having to replace all my lights (head and tail) within the first 4 years of owning the car I purchased brand new. Oh, they also had to replace my stereo again about 7 months after they replaced the electrical panel.