These are renowned for failing hence why its best to get relays in there as the whole current for the lights goes through effectively a small switch contact. As the flash works I would test the main light switch first as flash comes from a different source.. Have a relay diagram to upgrade the lights if you want it..
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Coupe quattro 1986:-~450bhp + loooong list of mods!
Audi A7 Bi-TDI SLine Black edition 2015 mapped to produce 600lb/ft torque!
Audi S4 4.2 V8 cabriolet 2004:-
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