Look at this on eBay

http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&pub=5575378759&campid=5338273189&customid=&icep_item=333024554872&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg&toolid=11111

Audi AllRoad Air Suspension Training

In order to begin diagnosing advanced systems you will need the information to focus on the testing required for a given problem. Here is an example of the work we do on Audi VW cars with a combination of testing, meters, and VAG-COM factory level access coding and programming software.

https://drive.google.com/file/d/1mHuFdeKoVVISRHA4w79y0O7TnwTt4mub/view?usp=sharing

Be sure to verify the basics first, it takes time, removal of interior panels alone can take 35 to 60 minutes each way, plus tooling and developing tests. If you need Audi VW problems diagnosed please see us at our site.

ps... if the dealer gave you a large estimate and you want to try to save some income bring us the printed copy and we will try to beat it or discuss alternate methods and parts. Thank you.