GTi went in for a service 2 weeks ago, and said it needed to come in due to "water ingress" in the boot. I had a look myself the following weekend, and sure enough there was about 1cm of water in the spare wheel well and it was sopping wet. I dried it all out and it's been in the dealers today investigating.
Got a phone call to say the boot was full of water again, (after 2 days) and they wanted to keep it overnight to do pressure tests on it. Never had this before, has anyone else?