Has anyone else been experiencing this with the colder weather we're having. I've topped up the resevoir with neat washer fluid that supposedly works down to -30 but still they are frozen until after about an hour of driving. It's really annoying as I commute on the motorway and get the salt spray over the screen which just blurrs without any screen wash. I assume the jets are heated so it must be freezing in the pipes just under the bonnet? Anyone got any useful tips? Passenger wiper also misses half the screen when its cold but is fine in normal temperature but I guess I'll have to put up with that - at least it's not the drivers side.