Function to be activated via VCDS - VAG-COM software
Option name: Daytime Running Lights (DLR)
Option description: Allows you to maintain the LED brightness when using the turn signals. By default, the LED brightness on the side of the active turn signal decreases to make it more visible.
[09 - Power Plant] -> [Coding - 07] -> [Long Coding Helper]
Octet 15:
Bit 3: Uncheck “Daytime Running Lights (DRL) inactive with Turn Signal active”