Had the washer hose repair done a couple of days ago under warranty and all appears OK.
Whilst it was at the dealers they said they would do the NOx recall work which they did.
If anyone is concerned that it may alter things then,certainly in my case,it is impossible to tell the difference.
My neighbour who has a Golf with the same engine also says he notices nothing different.
Just to reassure anyone who is concerned re the recall.