2011 e350 rear suspension all the way up

[Mattp]

My 2011 e350 wagon out of the blue just raised the back all the way up and it won't lower, if I drop the air it will settle itself to correct ride height but once driving a bit it does it again. It's both sides so I'm trying to rule out a leveling valve but you guys probably know more then me. Any input would be greatly appreciated

 

[AMGeed]

The rear has a metal level connector to the level sensor.
Its possible that lever has snapped or become detached.
If you have a Mercedes specialist, use him to put it on a ramp to inspect that lever.
If its not broken there is a Star test (Mercedes diagnostics) to check the sensor.