Oh, sorry for the late reply... I didn't know anyone had replied to this. I'd have to go back to my notes, but this happened to me sometime around January 2014, a few months after I purchased the C-MAX. When using the rear windshield washer, it would leak straight out into the A pillar. It was working perfectly fine when I first got the car. I brought it in to my local Ford Service Station, and they determined that there was some broken component in the transfer line. I heard it was a 6 hour job to take apart everything, replace the part, and put it back together... Luckily it was still under warranty at the time.