Audi A3 (8P) – Activate rear fog lights when braking (Coding)
Purpose : Allows the rear fog lights to be used as position lights and brake lights.
Proceed :
1 – Engine off, ignition off, connect your official VAG-COM VCDS cable to the computer then connect the other end to the diagnostic socket of your vehicle.
2 – Switch on the ignition then start the VCDS program.
Line 1 (fog brake lights):
3 – Click on “ Select ” then click on “ 09- Power station ”.
4 – Click on “ Coding 07 ”.
5 – Select module “0” and click on “Long coding assistant”:
6 – Byte 21 :
Bit 4 : Check “Rear Fog Light as Brake Light ”
Line 2 (fog position lights):
3 – Click on “ Select ” then click on “ 09- Power station ”.
4 – Click on “ Coding 07 ”.
5 – Select module “0” and click on “Long coding assistant”:
Byte 10 : Put the value 22 in the Dec box