headlight problem

[baedan]

i have a 95 a8 quattro and the problem is no dip or main beam,sides fogs and flash are fine.is there a relay just for this function if so where is it.

 

[baedan]

i have found and cured the problem,whilst using 100 watt dip and 120 watt main beam headlight bulbs has caused it to burn the headlight switch out