I have a Miele G572 that just started leaking and I believe it's the rubber seal around the bottom of the door. I opened the door and noticed that the rubber is breaking down and small pieces of rubber are coming off which is probably preventing it from sealing properly. It is not a lot of water but does of course require replacing the seal - which I've just ordered by calling their service number. This may be your problem.
Open the door and feel along the bottom of the rubber seal and you will soon tell whether it is in good shape or not.
Hope this helps.
Gary K., November 2008