I know this is a widely discussed topic but I have a couple of questions. My 87 560sel rides very hard going over bumps. I have replaced the accumulators with very little change in overall ride quality. The pump is indeed working and I was under the vehicle on the weekend and was able to move the vehicle up and down using the hydraulic control arm. I actually took out the linkage bar and manually moved the control arm up and down. However when I replace the linkage it seems like it is too long as I can't raise the control arm high enough to get the car up to the desired level. I did drive the car with the linkage out and desired ride height and it was still rough. My mechanic said I might need new coils but I can't wrap my head around how this would help. Thoughts???????

The Dude.

Taylor Made R7 425 8.5degree(the only other thing I drive)