Well I got the rear wiper arm off eventually thanks to your help! Now we have another problem, it seems to be one after another. The heater blower (front) doesn't work on the "1" or "2" positions, but works on "3" and "4". This is really irritating, as speed setting 3 is quite loud and if I turn the fan off the car gets hot and stuffy in seconds. The air con works as does the air re-circulation. Any ideas what is the fault? Thanks Max