1990 300te 4 matic No Self Leveling

[mespe]

Ok,

Last month it was icy here so I bought my wife a 4matic. It needed accumulators because the ride was bouncy. I replaced the accumulators, and now I noticed the self leveling suspension isn't self leveling. I attempted to free up the bleeder valve on the level controler, but to no avail (i.e. the line was not bled). Currently the rear bumper sits at 18 1/2 inches above ground, unloaded. which to me seems about 1-2 inches too low. I put the car back up on ramps and disconnected the level control lever bolt and manual moved the lever up and down, (with the car running and increased RPMs). but the rear end neither moved up or down. Please, what should I check now?