Right, I've done my searching and I thought I would create this thread as I'm confused about what I read. I read a post which Paullie created asking how to make the DRL brightness its full setting (100%) when the sidelight switch is used, as it said that they are dimmer when the side light switch is selected. Paullie then said that the solution for Sportbacks is Module 09 / Byte 18 - change from 2B to 2C. I have done this, but can't see any difference - is this correct for only a certain year of car? I have a 2011 car, and my standard setting in Byte 18 is 2B. The reason I wanted this mod done, is that I have auto lights, and the headlights come on way to early (i.e. it is still very light and not dark enough for full beam with side lights). A few other people commented that the DRL's on auto lights - were brighter in the daytime when the full head light has not come on. I also tried changing the setting to 26 (as Paullie said this was what worked for her in her facelift 3 door), as her standard setting was 25. Can anyone confirm the correct way to increase the DRL when only the sidelight option is seletected on the Sportback model?