Hi, First of all i'm new to the forum. I'm from Poland and i my english is not so well.

I'm a owner of Lexus LS430 from 2004, President version (or UL in US) with air suspension.
Two weeks ago, right rear air strut was blown and back of the car was dropped to ground.

Before that accident, rear of the car was pumping high and after a while back to normal, maybe for 2 weeks.

Now i'm after change rear right absorber for used one - good one. After installing, again rear was max hight and i feel everything. It was so tough. My mechanic try to low this thig, and clean height sensor connector and it was fine for maybe 3 days.

Now its something strange with car. After night, when i go to garage it's all fine, rear suspension was stable. Even after 10 hours.
But - if i go to highway (so i noticed) and park, back of the car is dropped maybe 1 cm. Engine is running, everything is fine, but car didnt level up for correct position. If I turn off the engine and turn on, suspension will level correctly. It was look like suspension was dropp after driving while, and maybe with higher speed.

Now, what i can do? What's the problem? I'm afraid it will drop again and I'll be grounded for a long timePS. My mechanic doesn't have techstream, so we cannot connect to car and check faults. In Poland, there is few mechanics with that software, so i must wait to connect to computer and check faults.