Is there anyway to bypass the level control system and install new conventional rear shocks? Or has anyone had luck with repairing the system? Thanks.

 

You can buy the parts to repair the leak from www.autohausaz.com or you can install a conventional power steering pump and regular shocks to bypass the system in you want to lower the wagon all around.
PM mark Cummins on mbworld.org w210 section for the procedure.
ohlord