Hello,have just returned to the fold after buying a S4,but have a problem with the wipers.When I start the car they start sweeping,stop without returning to the flat position.Also when I use the wipers,they wont switch off when I switch them off by the stalk.Any ideas would be appreciated,as the cars doing my head in lol.Only had it a month and ive had to do the EGT sensors,Throttle body,aux water pump,and now this