Update: My vehicle was in the shop all day to investigate the Self Level issue. They replaced the sunroof drain tube (rear right) that would not stay connected. An $8 part that caused all the damage. I will have to leave the roof liner disassembled for several more days until everything dries out up there before I seal it back up.

As for the suspension, They pretty much narrowed it to the Air Supply Control Unit (part# 37141092396), located next to the battery. They disassembled the unit (yeah, I was surprised they could do that also) and said there was clearly a water line from being submerged and the start of mold growing inside. They cleaned it up (disassembled and washed non-electronic parts, and cleaned connections on electronic parts), reassembled the unit, and re-installed. This was the first time since the water infiltration two weeks ago that the "selflevel susp. inact." message had stayed off.

They drove it for a while, checked it out again, drove it a while more, then after about 1/2 hour the message came back on. All the error codes from the computer were pointing to incorrect voltage levels to various components of the self-level suspension, which would somewhat point to this component.

Anyway, as I arrived to pick up the vehicle, the message came back on. As it was 5:30 on a friday, there wasn't much more they could do.

My next step is to probably purchase a new unit (approx $150 for the rear-only unit). My understanding is that it should work plug-and-play, however, it does require some fine tuning with the computer, as you basically get the vehicle to the correct ride height then program the unit to let it know the correct voltage to maintain that setting.

Needless to say, I paid $300 over a week ago(which included an $125 prof. oil change and once over on the vehicle) and the time to investigate the Suspension issue. Today's trip was only $8.95 (drain tube only) and no labor charge, since I again drove away with the Suspsion message flashing again.

One other thing they mentioned is that it is possible to "manually" re-inflate the suspension(somehow bypass this component?). Not sure how they did that (physically with a system component or with the computer?) , but a couple days ago the suspension deflated after two weeks. I would like to know how they did this in case it happens again while I am waiting to get this part installed and configured. Anyone?