So the rear washer on my car has been on blink for a while, it's never worked very well since got car 6 months ago. Car is still under warranty so when it was in at Audi Walton they said it is blocked and need replacing. The dealer reckons it's not covered by warranty as it's not broken but blocked! Apparently they can't unblock it so only option is to replace it. This is stupid as it's clearly a design fault- has anyone else has there's done under warranty? I'm not going to pay it!