I did do a full VCDS scan last night, but have not looked at it. I will take a look tonight and see what I can find.

Thanks for all your replies.

Ronald

 

I am bringing this thread back to life. I had some major issues with the air system so, have not used the car. Now it is back on the road again and the issue with the dashboard still pertains. However now there is another symptom. Other than the dashboard resetting more often, the dashboard will now also go on "tilt".
When it is on tilt, i see:
- middle part of the dash works (although miles stays on 0, radio part works and temp works for startup, but does not update
- several lights are on: ABS, the yellow air system light, the parking brake, the yellow triangle with circle and maybe some others.
- The tach and speedo are not working
- the backlight for the dashboard is not working
- time on the MMI system is on 12:00 am and stays there.
- the middle console (airco, chair heat, cold, heating) are lit up and working (during the resetting they were working but not lit up.

I have found that only disconnecting the battery resets this "Tilt" mode.

I am going to put the computer on it tonight and see what I can find.

In the mean time, if anyone has an idea, please let me know.

Thanks,
Ronald

 

[QUOTE=rwhans007;1464975]I am bringing this thread back to life. I had some major issues with the air system so, have not used the car. Now it is back on the road again and the issue with the dashboard still pertains.



I had very similar problems about 2 years ago and it turned out to be the ABS Control Module. if that is the cause, you can send your old one in and have it rebuillt or remanufactured for less than $175. Symptoms I experienced were: SpeedO not working, TachO not working, Fuel Gauge, Trip computer, Steering adjusted to speed mode (hard) the suspension dampening did not respond, power fold mirrors didnt fold in, couldnt adjust the Air Suspension....If that is not that, it could be The Battery Management System which only allows systems to operate that are important, while turning off unimportant battery consumers such as interior lights, heated seats mirrors etc. Hope this helps.

 

I do not have all the symptoms you summed up, but I do have most:
not working:
tach
speedo
Not sure about the dampening, but I do not have any option on my MMI to adjust the air suspension anymore.
My mirrors do still fold up, heated seats are still working as well.

What is a reputable place to have the ABS module rebuilt? and where is it located in the car?

Thanks again for your help,

Ronald

 

If you look on Ebay or Craigslist there are alot of places that refurbishes them, not sure of any specific places, as I ordered a used one off ebay from another A8, had it programmed and installed at my local shop. I still have my old module in the garage but it hasnt been rebuilt yet. If you choose to replace your ABS module, the new one will have to be programmed by the dealer or qualified repair shop with proper equipment. If you have your existing ABS module refurbished, you will not have reprogram. I hope this helps

 

By the way, my MMI control for adjusting the suspension was grayed out as well. As far as the suspension dampening, the car my rides very hard with not much cushion.