Lately on a 07 passat I have the front dims are seriously poor with the light there emiting. It's gotten to a point I have to really slow down and try guess how close I am to the ditch and white lines when there's a car coming against me. I took the bulbs out of the headlight and turned them on, the light there sending out is very good, but when I set them in the headlight is bad again. So I'm guessing the problem is the reflection bit in the headlight.? Iv been told is after melting and fogging up.? Can this happen.? I need to get it sorted as its getting kind of annoying and also dangerous when driving at night.