As long as it is clear to everyone that the post that Max is commenting on below applied to spring-assisted SLS systems (123/124 wagons and similar).
The 6.9/Euro-500SEL system is QUITE different, with no steel springs. The pressure management is also different, and there's not necessarily a "base pressure" in quite the same sense as in the steel spring systems. Alex: apart from the (very basic) schematic in maintenance job 086, you might want to check maintenance job 629, which provides information about how to test system pressures. Importantly, it also shows images of the normal positioning of the height selector linkage at the pressure regulator on the fluid tank. The pics are from a 116; not sure if the 126 is set up the same way, but you might recognise the pieces... D. Max Dillon wrote: > Agree with all below, and add that the control valve is supposed to maintain > a factory-set base pressure on the strut/accumulator side, regardless of the > position of the lever. This base pressure is the required pressure to keep > the rear end from sagging when the car is in "ready to drive" condition (i.e. > no cargo, but full fuel tank, spare tire and tools in place). If the system > is operating correctly, the only way to relieve the base pressure is by > opening the bleed screw on the control valve or make a leak in one of the > lines to/from strut and accumulator. > > -Max _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com