So here is some help for you guys. Not sure if this will help. All this is from the service history. LF front strut failure and all the shit that the dealer replaced. The dates is the complaint date and the repair date.

01/11/2010 FRONT SPRING STRUT, AIR SUSPENSION (LF) LEAKING
01/18/2010 FRONT SPRING STRUT, AIR SUSPENSION (LF) LEAKING
01/21/2011 AIR SUSPENSION - TRACK ROD LOOSE
04/08/2011 ACCUMULATOR/VALVE UNIT, AIR SUSPENSION (LF) PERMANENT
MALFUNCTION
05/05/2011 AIR SUSPENSION - AIR SUPPLY UNIT PERMANENT MALFUNCTION
05/05/2011 Air supply system for air suspension (LF) permanent malfunction
06/20/2011 AIR SUSPENSION - AIR SUPPLY UNIT PERMANENT MALFUNCTION

So after all of this, and the previous owner paying $50 per visit under CPO, he still paid $350 out of pocket to get it fixed.

All this really tells me, is that the dealer mechs don't know what they are doing either. It seems like they are just replacing shit, and hoping for the best.

With all these issue, and if someone is dropping over $1k into this system, it might be a good idea to switch to coils, and have someone disable the air ride in the computer.

After reading all these posts on the issue, it looks like the following happens.

First, your air spring fails. Car drops. So related components are now air contaminated, which means moisture contaminated. Also your compressor is working overtime to keep it inflated. So, if you neglect the issue, your compressor will fail. I also suspect that your valve unit will fail as well. Think of it like this, if compressor is working a lot, that air, is hot. Aluminum valve unit and fittings start expanding, also leaking. The car also tries to auto level, this I suspect is also done through the valve unit. I am sure it balances the pressure side to side. With leaking shit, I suspect that valve unit working like crazy to keep the car level. Look above, at service. Dealer kept dealing with the left front spring non stop. Accumulator failed, and valve unit failed, I am sure as a result of not addressing the issue promptly.

If your car is jacked up, I suspect the valve unit took a dump, or some sort of electrical relay. Something is not letting it dump excess air.

Why is this system so retarded? I just don't understand why it fails so often and so drastic.

But I have to say, if your car drops one spring, you need to disable the damn compressor right away, not drive the thing, and replace the spring asap. If you keep driving, you are probably going to make other components fail.