Hi , firstly unplug your machine , then open the door , place your hand on the door rim as if you are going to lift the machine up in the air , see if you can move the inner drum up and down , with your fingers if you can then the bearings are worn out and need replacing , this could be the cause of the leaking and the banging , or it could be that one of the hoses under neath has a hole in it , and the banging could be either from unbalanced load or drum suspension has come adrift . hope this helps
jim
January 2010