Its a leak, I took the front grille off to have a closer inspection.
Not the hose, I also swapped the hose round and changed the jubilee clips. Still piddling out. It a small bottle on every journey!.
I think Radweel is a big no-no!.
When these things go wrong they go wrong, big time. Its only got 70,000 on the clock.
Cheers Gareth