John: Thanks. When you refer to the accumulators are you referring to the "air cells"? These are shown at Performance Products at $110 each and two are needed. Regarding the $1480, I was told by a "MB Mechanic" that to change out the system to a standard shock or air shock system would require a complete replacement of the springs, shocks and Trailing arms. The trailing arms are $1480 each, one for each side, in the Performance Products catalogue. I only mentioned this as a possibility if the system that is there cannot be reasonably repaired. Somehow the idea of total replacement fails the "common sense test". Thanks again for your reply. Lee