Sounds like they further misadjusted the linkage. The valve is working if they were able to influence the resting height. The system's operation is clearly described in 32-501.
It should be adjusted so that the unloaded vehicle's resting height is determined only by the base pressure. The height control valve should only activate if the rear end is deflected significantly (a couple of inches). But if they've overadjusted the lever, it may not be activating when load is added to the car. When moving the height control lever (disconnected from the torsion bar linkage), you can feel the point at which the base pressure circuit takes over from the height control circuit. There's a very subtle notch feeling as the height control lever strikes the filling ball valve. Remember there are two separate control modes: the base pressure circuit (when functioning correctly) completely overrides the height control lever in the downwards direction after a certain point. You can put the lever all the way to the drain position and the car will not fall below normal resting height. The base pressure circuit actually moves the ball valve out of range for the control lever to prevent loss of base pressure. We are talking about adjustments of a few millimetres here. This is not something that should be done by people who haven't read 32-501. D. > On Apr 19, 2014, at 11:39, Andrew wrote: > So I went to a dealership for a Club High Mileage event and had an array of > seasoned techs work on my suspension problem. :) > > The consensus was that the bouncy rear end was NOT related to the air cells > (spheres), since they are new. > > We lowered the ride height by adjusting the rear valve linkage, from 16" to > a litle over 14 as measured from the center of the rear wheel hub to the > wheel arch. _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
