if you
shop around the discount motorist shops you will find 5 litres of concentrated screen wash for around £5, the Halfords stuff is already diluted and ready to use and so works out quite expensive. I bought 5 litres from CostCo in Derby last year in the summer for around £4 plus the vat and I still have around 2 litres left. If you go to a
dealer for a
service fill up the screenwash before you go and then they can't charge you for Seat screenwash!