The coil pack fails, I have replaced it twice and no matter what the check engine light comes back on in no time at all and it's coil pack failure, which also triggers other sensors like the coolant sensor which I have replaced as well. I think the longest time my check engine light was off was 3 weeks! this car costs a fortune to fix and it's never fixed.

- Newport, NH, USA

I bought a Volkswagen Gti 1.8T in 2001. It had numerous failures on me. Ignition coil failure, window collapsed sudently, shift is stuck in parking, catalyst converter failure, rear brake pads worned out very fast while the front pad was like new. I am extremely disappointed in Volkswagen. Their customer service was horrible. Allltheir responses were this is not under the warranty, it's normal wear and tear etc.

- New York, NY, USA

My blinkers stopped working in August 2002. Dealer repaired under warranty. January 2003 check engine light came on. Car off warranty; turbo cut off valve replaced and coolant temp sensor. Check engine light came on a couple weeks later. Took Gti to dealer again. Dealer replaced the fuel pump relay. Now, 3 days later the check engine light came on again.

- Dunwoody, GA, USA

Check engine light comes on about every month. Each time there is a different reason for it coming on. It''s been really annoying driving to the dealer every month.

- Auburn, NY, USA

The ignition coil failed.

- Chicago, IL, USA