JamesMBZ

Hello all, I am stumped as to why the ABC hydraulic suspension unit on this 2004 will NOT function when I ask it to do the Roll actuation to the right side. It does center to the left side only. When I do the Pitch actuation it goes all the way down front and back evenly on all 4 corners, all sides. When I ask it to do Rodeo it does each corner with full motion. However, when I say Roll, center left only, no roll to the right side. I have no codes, except car to low left front and left rear. And load adjustment not successfully done. Its because of the lurching left , it won't load adjust.

I have replaced the rear-level sensors. I have clean fluid and filter. I have replaced the control module. I have rebuilt the solenoid blocks and replaced the actuators. New Batterys, starter and consumer. I am using SDS/DAS MBStar.
The results of why I can't get it to roll right is that affects its stance when unlocked. Its low left front and back.

Gunter Benzmeis

Wow it looks like you've covered all the bases. I would suspect a bad valve block but then rodeo wouldn't work. There is abc Bible document that covered a lot of diagnosis. Check it out

http://mercedes-abc-drive-carefully....y-part-of.html

tim687

How are the values of the strut travel sensors?

Check and compare against known ranges