[NKTOUAREG]

The AFS is your adaptive headlights

The AFS is your adaptive headlights- that illuminate the corners when you are turning. You can check them out and see if one of the turning lights is out, on the "new body" style Touaregs these lights turn on and off every time you turn a corner- and those kind of bulbs seem, to me, not to be the kind of bulb that takes kindly to being turned on and off repeatedly. Start the vehicle up, put it in drive (facing a wall or garage door) and turn the wheel to the right and to the left. You should see the bulb illuminate when you turn each direction- if it does not, or does in only one direction, you may have a bad bulb.
It's pretty easy to change bulbs if that is the case- there is a small release tab on the back of the headlight assembly (inside the engine compartment) and then you simply push inward on the outside rear edge of the headlight lens- it will "pivot" inward, and then you can slide the whole assembly out, remove the back cover, and replace the bulb.