Be very careful if its weak, the pipe which carries the water may have a leak. Check under front passenger seat well to see if its wet. If it is, fix the joint immediately or risk damaging the parking sensor module located under passenger seat. Common problem! The joint blows apart or partially comes apart. Relatively easy to fix, remove plastic trim from side of front footwell to expose pipe, repair and reassemble Thanks you were right under the passenger carpet was wet and low and behold the washer joint had come loose took me longer to get rid of all the water thanks again Mark