Just for laughs / did you try pulling the relay that controls the suspension before leaving it overnight. If there is no movement you can rule out an air leak. I would also try swapping height sensors left to right (not sure if youYou would think if it was bad it would throw a code?
Maybe I’ll give it a look and see if I can find one.
those lines you speak of have been replaced and all parts are now OEM. Compressor is brand new. I will be checking the module per alpacas recommendationIf the vehicle sags on one side after it's left overnight I double it has to do anything with sensors and electronics. I can't see any scenario where the vehicle is trying to adjust the height on its own with the power off.
I had an issue on my 2006 L320 where the air lines at the front of the car (behind the front passenger wheel) were rubbing on the body and developed a leak mid-line. I found it by spraying soapy water all over.
When I was troubleshooting my system I found tons of leaks. I had to replace all of the push-to-connect fittings. The filter in the desiccant tank (part of the pump assembly) was also clogged. I replaced the desiccant and filter, I think I put a new desiccant tank body on it too.
From what I recall, the front two wheel air lines connect to the front valve block, so if only one side is dropping it has to be an issue between the strut/shock, air line to the front valve block , or the the front valve block itself.