Air suspension
New member here with a 2008 s550. I've been having a problem with the left rear strut. Over night the ride height will drop. I've checked the top of the strut with soapy water and no apparent leaks i also checked the distribution valve and no bubbles. I can see the pressure dropping in the live data on my scan tool but can't hear any leaks. sometimes the pressure drops very low but the car itself stays level.... i'm thinking perhaps the leak is internal to the distribution block? Is the pressure measured at the block or the strut itself? even when the car is fully level the pressure reading from that strut is 20-30 psi less than the others?
the car has 70k on it.
any help appreciated






