I have a 2010 Volkswagen EOS, and as of a few weeks ago I started noticing water in my rear passenger floorboard. Its not just damp there is a puddle of water. I have soaked it up a few times and vacuumed it out. I read about drains getting clogged so I took my car to a body shop and they blew out all the drains and said they were all clear. Other than a few drops when I go through a car wash I don't notice a lot of water coming in through the top. Does anyone know what could be causing this or is it a common issue. The car only has 30,000 miles on it.