Audi Repair: Fog lights not working Audi A6, front fog lights, rear fog

Question
Is there a fuse for the fog lights only? I just bought and Audi A6 2001 2.7T Quattro.
Fog lights do not light although the switch is showing that they are on, also the rear fog light does not work.
Everything else is working (sunroof, windows, turning and stop lights, interior lights etc.)
Thanks,

Jaime

Answer
Yes there is a fuse, but not shared between rear and front fog lights.  The bulbs are prone to failure, did you check the bulbs?  also there is a relay that switches on the front fogs when the rear is switched on, check the relay for functionality.  Let me know,  Jan