I did wonder if there was a special spanner for undoing things like that but couldn't find anything
yes there is, here http://www.holden.co.uk/displayproduct.asp?pCode=095.193 but it is about £27
yeh i broke mine a while back, so will probably do the same thing as you, i did see a whole unit on paddock spares that might work.... - http://www.paddockspares.com/579006-wash-wipe-switch-s3-single-speed.htmlnever looked inside one, the connections aren't very strong on the back btw, I broke one of the washer ones so had to wire the washer pump to a press switch as the only replacement "proper" wiper switches were £40 plus which I thought was a bit rich