I just finished the first attempt at vagging my A3. It was mostly successful but with some variation from the writeup. Here's what I found:
1. I can't find a way to eliminate the seat belt chime. None of the bytes in controller 17 appear to change that (according to the long coding helper).
2. On my car, controllers 9 and 17 have exactly the same coding.
3. Enabling window closing via remote differed from the writeup. Instead of bytes 3,4,5, I had to change bytes 5,6,7. Closing/opening works with the remote but not with the window switch. Is this standard behavior?
4. I enabled Emergency Brake Flash (Controller 17, Byte 17, Bit 0) but have no way to test it.
5. I enabled the Advanced Comfort Menu (Controller 17, Byte 23, Bit 1). I've only had the car a week so I didn't memorize the menus but it appears that there are now more options in the menu.
6. I disabled selective lock (which I hated).
I still have some changes to make but most require hardware changes (Euro light switch, footwell lights). One question I have, do base model cars have an ambient light sensor to automatically turn on the instrument lights (not the headlights, I know that's absent)?
Thanks for the ideas and the help with questions over the past week.
1. I can't find a way to eliminate the seat belt chime. None of the bytes in controller 17 appear to change that (according to the long coding helper).
2. On my car, controllers 9 and 17 have exactly the same coding.
3. Enabling window closing via remote differed from the writeup. Instead of bytes 3,4,5, I had to change bytes 5,6,7. Closing/opening works with the remote but not with the window switch. Is this standard behavior?
4. I enabled Emergency Brake Flash (Controller 17, Byte 17, Bit 0) but have no way to test it.

5. I enabled the Advanced Comfort Menu (Controller 17, Byte 23, Bit 1). I've only had the car a week so I didn't memorize the menus but it appears that there are now more options in the menu.
6. I disabled selective lock (which I hated).
I still have some changes to make but most require hardware changes (Euro light switch, footwell lights). One question I have, do base model cars have an ambient light sensor to automatically turn on the instrument lights (not the headlights, I know that's absent)?
Thanks for the ideas and the help with questions over the past week.