Well a small update, after speaking to Skoda this morning it looks like the brake servo pipe is now modified from 1 piece to 3 pieces however they don't list the new part as fitting my chassis number so am still looking for a s/h one.
On another note the trip to Cardiff airport and back saw 36.8 mpg which with the remap and extra weight (people / cases etc) I did not think was too bad.
Also thinking of going back to 17" wheels
