hi all...

while driving along today my 04 1.8t s line, it started sounding funny, and lost power. sounding a bit like a diesel.

checked the dashboard, there is a emission control warning light on there flashing.

quite worrying really.

does anyone know if this a serious problem, and costly to repair?
also the car is covered under the audi service/warranty, so would this fault be covered under it?

Can anyone give any advice on this?

thanks.