They could not figure out the problem because the problem left no codes behind in the computer. VW will only work on a system if it produces fault codes and stores them in controller memory. Even though I get the problem and it displays on the MFI, it is not storing any faults. I'm not worrying about this problem until I get a solid repeatable problem that won't clear without a restart or until I start to get fault codes showing in the controller memory (of which I can scan using a VAG-COM tool at home).
For you, it might be worth taking it to the dealer to scan for codes, but if they are not stored, it will just be a waste of time on your behalf. I would wait to see of the problems become more prenounced. Play the suspension settings and see if you can reproduce the problem.