hi just a quickie! if you can hear the pump and the boot lock is getting wet when you raise boot it will have popped itself out of the retaining hole! well reknown on fiat and alfas!!
very simple undo the 4 screws and CAREFULLY!! remove trim cover and you should see the pipe hanging down! just pushes back in 'till it clicks! Hope this works should only take about 20 mins ! if the pump is not sounding it is normally a pump (but only ever known it to be popped off hose !!) hope this helps