Now, as part of the teething problems, another problem. The wipers go dolally and won't stop when you put the stalk in the off position. I've replaced a cheap relay 5 quid chinese one with a genuine Lucas relay for 21 quid. It seemed to be ok for a few days when it wasn't snowing but now it's gone dolally again. So I then swapped the new stalk switch with an old spare one I had and it seemed to then solve the problem but again after a few days it's gone dolally again. The wipers won't switch off in the off position. Anybody ever had this?

There is a park-switch inside the wipermotor gearbox.