My RS6 received the Audi DRC recall / update a few years ago. Lately, the car seems a little bouncy. No noises or clunks, just bouncy. I took it to the dealer and they said that they don't see any visible leaks in the DRC. They pressure tested it and said that the pressure was low on both sides and slightly different on both sides. It had some pressure in the system but I don't recall the exact numbers.
Is it possible for the system to lose pressure but not show any signs of visible leaks? Would it be worth having them recharge the system? Just want to educate myself before I make a decision on whether or not to try to recharge it.