ABC strange behaviour/question
 

Hello all,

A few years ago, I acquired 07 SL550 with 89K miles on it. Immediately, I replaced oil/filter, pulsation dampener, front&rear accumulators as a preventative maintenance.
Now I have 123K miles on it and feel that the car is imbalanced going over the bumps and while stopping. I checked the pressure on struts; both front have 77bars, rear left 75bar and rear right 65bar.
So, rear right strut shows low pressure and that difference in pressure might explain why the car feels imbalanced.
What could be the problem area: strut or pressure sensor on the valve block or the height sensor? I use XEntry for the diagnostics and service. I would appreciate if anyone had a suggestion or any other input. Thank you in advance, Vadim

The lower pressure on the rear right suggests to me that this strut may be extended relative to the others. Whether or not the vehicle is level when on level ground would indicate to me troubleshooting steps.

Maybe a ride height calibration would help?

That and/or a strut calibration, which I may recall doing on a friend's '09 car last fall.