2004 2.0 tdi I always have my lights switched to auto and they have been working fine. The lights have not been on for a while now due to light mornings and nights. A couple of times when the weather has got bad I have noticed my lights have not come on when I feel they should have, so I have manually turned them on. The other day the weather was bad and it was quite dark, when I got in the car i turned my key to the point that just turned on the electrics the lights came on also had the green light icon lit on the dash. When I turned the ignition again to start the engine the lights and green icon went out! Again I had to manually turn the lights on. I tried this again once I got to my destination and got the same result. Seems like something is cutting the lights out?