Strange electrical prob - any ideas?

[CamV6]

Strange stuff on my TT



First the drivers side vanity light goes, then a week or so later, the passenger side goes too.



So, I presumed the bulb had blown and took the opportunity to order some interior xenons from Audi TT Stuff-Audi TT Performance Parts and Audi TT Accessories



Went to fit them today and the original bulbs are fine, not blown, and it appears there`s no power going to the fitting because the new bulb wont work either



I cant get my head round this. Surely, if it was a fuse then the reading/map lights in the middle wouldnt work either?



I`ve just been out and checked the fuses. They all seem ok, so I`m at a total loss now.



Can you think of anything at all?



Regards, Cam

[Setec Astronomy]

Couldn`t it just be as simple as the wire feeding power to those two lamps is broken/disconnected? If the car is new, talk to the dealer, they may know where the wires are routed and if it`s a common problem. Or if there is a specific forum for TT`s and it`s common I`m sure someone there will know how to fix it.



Do those vanity lights have a dimmer? It`s also possible there are some local electronics associated with that that are faulty and have burned out, preventing them from lighting while the fuses and wiring are intact.

[sspeer]

Ahh..the joys of VW/Audi electrical systems.



I wonder where the wires for the vanity mirrors meet..I would doubt that it`s 1 common wire..so perhaps they meet at a wiring harness ..or heaven forbid a control module.



Have you tried any boards such as vwvortex?

[EOppie]

If you have a multi/volt meter you could check the contacts on the bulbs for voltage. It would also be a good chance to check for a contact to ground via a continuity setting. If you don`t have one of these tools, swing by a pep-boys or advance auto parts. Usually they will let you borrow tools for a bit, and this will only take a few seconds to check in the parking lot.