PFL TO FL HEADLIGHR RETOFIT

Gilbert.builtS3

Registered User
Hi guys. I have a 2016 Audi S3 prestige. I bought 2018 Rs3 LED head lights . My car currently has leds just obviously the pfl headlights.
So i plugged in the the 2018 headlights and they turn on. But the turn signals , drl and high dont function when i try it.. i know there is coding to be done the head loghts cane complete with everything. So my question is what type of coding is needed and i keep hearing about needing a bcm..but some tell me i dont need it.. so im a bit confused. I just ordered my new bumper so i really want to get this done so i can put it sll together. Thank you guys
 

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