I just purchased a Land Rover LR3 2006 on Craigslist. One of the issues was the clogged sunroof drain. Found out how good the door seals work. Open the door after an all night down poor, to what seemed like Niagara Falls coming from the inside. I inspected the two front sunroof drain hoses, checked for any damage. The hoses are in excellent condition. The problem was on the right side of LR3 as the front passenger and rear right, was where the water was located, left side was dry. While replacing the break pads and rotters I took the splash guards off exposing the sunroof drains. The only drain that is not behind the splash guard, is the one located on right front behind air intake grill. I did notice that behind that grill there is a peace of rubber that could have caused a clog. I did use an air chuck connected to a compressor and aired the lines out. We just had a good down poor today and everything seems dry so far.