Since this likely to be last service before warranty expires late this year thought I'd best get it done at a Skoda dealer service Centre rather than the VAG specialist who have serviced it previously. Shocked at the quoted price I decided to at least supply my own oil. Left them a 5 litre container which I find completely empty when I get the car home and a dipstick measuring quite a bit over the MAX mark. Should I be too concerned about an engine spec'd for 4.6 liters which appears to have had 5 liters tipped into it?