Moved mine to the boot soon after getting the car, it was working ok but decided to check it out and move it. If you remove the small inspection panel located at the front of the rear wheel arch you can see the drain end with its rubber valve, pull the valve off and get a flexible rod or cable and give the drain a good poke to make sure its not clogged up. Leave the rubber valve off when you put it back together. If you are ging to move the motor to the boot, remove the parcel shelf from the boot and the side support panel it rests on then you will see the motor in the well. It is held in there with cable ties that you can't see. The top of the plastic housing is secured with tape, you need to try and remove this to flip the top off to reveal the motor and pump. Brute upward force will break the ties and allow the unit to be lifted out, I managed to free mine using a long metal bar forced in between the plastic housing lid and the main body of the container. The ties will eventually snap or the slot on the plastic housing where the ties are threaded through snaps through releasing it. Lift it out and pull it back into the boot, the cvables and pipes are long enough to reposition it. Now is the time to dry it out and lubricate it if its been in water. If its dry and working just relocate it using tie wraps using the small bracket hiding behind the side wall carpet. You have to make a new hole in the plastic side support to route the cable and pipes from its new position. Good guides with photos on this and other forums. Apart from getting the motor out I found the hardest part was getting the shelf retaining clips back on the shelf, they have to be in the right orientation to snap back in and you have to reach around from inside the car to get them in place by feel. There are people who can do this job in 40mins, it took me a lot longer but would be faster having done it now.