a6 c6 2007 2.0 tdi 12v alternator or 14v alternator

[yaza01]

hi all seems you can get 12v alternatora and 14v alternators anyone know which is the correct one

cheers

[Trevor]

most alternators would provide an operating voltage of between 12 to 14 volts which fluctuates depending upon power demands.

the only difference I can think  you may be presented with is the output current (e.g. 60 amps, 80 amps, etc)

[yaza01]

o okay because previous owner replaced alternator and said after he did the traction control light comes on after 10mins or so 

euro car parts sell 12v and 14v alternators cheers

[Trevor]

I can only imagine he may have unplugged a wire from somewhere close to the alternator to affect the traction control or spiked the electronics when fitting it?