New Member / S6 questions

A6 All/ S6 All
#1

Hey guys, V8A6 sent me over here from AudiZine!

I’ve just got a 2007 S6 a few weeks ago, and really love it so far! I have read through the entire “info dump” thread, and had a few questions that I couldn’t find answers to there, or anywhere else. Hopefully some of you guys can help me out! Also, I’ll try to post some pictures in here as soon as I figure out how.

Now, on to my questions:

  1. After I bought the car (from a dealer), I noticed that it has a Milltek exhaust. Awesome! But now I’m wondering what else has been done to it that has gone unnoticed by the dealership and myself. Namely, how can I find out if it’s had an APR tune? And what else should I look for?

  2. Where in the heck is the ECU located in this car?

  3. The previous owner drilled a hole in the front bumper, next to the driver’s side headlight, and installed what looks like an LED. There isn’t a matching one on the passenger side. And if it is an LED, I’ve never seen it light up. What in the world could this possibly be for? I’ll try to post a picture later, but has anyone ever heard of someone putting something there? I’ll post a photo as soon as I can.

  4. I get an adaptive headlight warning on the dash every time I start the car. The headlights move vertically, but it doesn’t look like they move horizontally. Any ideas?

  5. Is the MMI worth updating? I forget what version mine has, but I do know it hasn’t been updated since 2007. Can I update myself, or should I just take it to a dealer?

  6. Every once in a while, I get an ESP fault message. It comes up about once a week, always after I’ve been driving at least 10 minutes, but definitely not every time I drive the car. The ESP seems to be working fine. I mean, it’s sort of hard to tell, it’s really hard to break traction in this car even with the ESP turned off.

  7. The little removable covers in the front bumper under the headlights - what are they covering (there is no tow hook behind them that I can see), and how hard/expensive is it to get new ones? One of them is missing, and the other has paint pealing.

Thanks in advance, and I’ll try to get some photos up asap!