VCDS: Coding Daytime Running Lights - How To (Solution)

With VCDS, it is possible to activate the daytime running lights in many vehicles from Audi, Seat, Škoda, and Volkswagen. This is usually done by coding the body control module/central electronics (control unit address 09).

The attached screenshots show the activation of the daytime running lights as an example, using the VCDS diagnostic software on an Audi A6 4F.

In some countries (e.g., Switzerland), daytime running lights are mandatory, but whether this has a positive impact on road safety is debatable.
The impact on the special protective effect of vehicles that already have daytime running lights (motorcycles) needs to be considered. In some countries with mandatory daytime running lights, this benefit has been reversed (Austria), as poorly or unlit road users, obstacles, or people are then even more likely to be overlooked. Furthermore, it was found that drivers tend to focus on light sources in their immediate vicinity, which can impair their reaction to hazards in the wider environment.