Audi A3 (8V) – Third brake light on if trunk is open (Coding)
Purpose: Allows the 3rd brake light to remain on if the trunk is not completely closed. For a safety light at night or to be sure that your trunk is properly closed.
Attention!! There are 2 lines of coding to do here.
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 launch the VCDS program.
Line 1:
3 – Click on ” Select ” then click on ” 09- Central electrical unit “.
4 – Click on ” Security Access – 16 ” then type the code ” 31347 ”
5 – Click on ” Adaptation – 10 “.
6 – On this page, at the very top, there is a drop-down menu.
In this drop-down menu, choose ” Leuchte22BR MA57-Lichtfunktion C 22 ”
7 – On this same page, there is a second drop-down menu but towards the bottom
of the page.
On this last one, choose the value ” Heckdeckel Offen ” then validate.
Line 2:
3 – Click on ” Select ” then click on ” 09- Power station “.
4 – Click on ” Security Access – 16 ” then type the code ” 31347 ”
5 – Click on ” Adaptation – 10 “.
6 – On this page, at the very top, there is a drop-down menu.
In this drop-down menu, choose ” Leuchte22BR MA57-Dimmwert CD 22 ”
7 – On this same page, there is a second drop-down menu but towards the bottom
of the page.
On this last one, choose a value between ” 0 ” and ” 100 ” depending on the lighting power of the brake light then validate.