fog lights were definatley working, then the other day i noticed they werent so i checked the fuse #19 o.k. then the bulbs all o.k. i then checked i had 12v at the #19 fuse holder which i have ( can be turned on an off using the foglight switch, saying to me that the switch is ok?) so next i checked the connectors at the back of the foglight they were both plugged in so i unplugged and tested for 12v = nothing. tried my best to trace where the cable goes next but it just appears to go into each respective wing.

am i missing something a relay perhaps?

car is 06 saloon
a4 sline standard lights

 

Assuming you are in the US, make sure your lights are on low beam, not high beam.

 

uk - they dont work in any position but did before!