Emission Control system light ?

[welshaudi]

Hi
Im a bitconcerned about my A2. I have been experiencing some problems for a month or so now when accelerating, i.e very jerky almost chugs along, I spoke to a mechanic who said it could be due to using a poor quality petrol and running the fuel low which could be dragging up crap from bottom of the tank. So I folowed his advice and have been filling up with a premium petrol but alas still no joy and now the Emission Control system warning light has come on, at first just flashing and now its on permanently !!!

I have booked the car into a garage for next week. Any ideas what could be causing the problem ? Is it hard to fix ? and How much am i looking at paying ?

Thanks guys

[welshaudi]

Sorry forgot to say

its 2004 1.6 FSI SE

[ULP]

I bet one of your coil packs has gone.

Get a VAGCOM check to tell you which one it is and then get a replacement from your dealer if the car is less then 5 years old as it will be covered by warranty (extended for chocolate coil-packs from 3 years). It's an easy job (literally disconnect the pack and put a new one in) but you'll need to know which one it is.

This means one of your cylinders isn't combusting because there is no spark. Probably not a good idea to drive while putting neat fuel down through the CAT.

Personally, if I were driving an FSI there would always be a spare coil-pack residing under the boot floor...