OP definitely just needs to remove it from Audi and get it to an independent hybrid specialist to diagnose. These systems are so complicated and with Audi clearly having absolutely no idea how to diagnose this car, they want to just wash their hands of it ASAP.
This needs someone with proper knowledge to have a look at and diagnose. Like i said before - I'm assuming they've charged the 12v battery or at least swapped a good one in to check this?
This needs someone with proper knowledge to have a look at and diagnose. Like i said before - I'm assuming they've charged the 12v battery or at least swapped a good one in to check this?