Ok guys sorting out the problems with this car that is new to me. Suspension is on the block now. Front has broken springs so I need to do that. I want to know how to check the rear because the rear pass side clunks a lot it even sounds like it is bottoming out on bumps. The hydraulic reservoir is not losing any fluid. I want to figure this out before I order springs because I plan to get some h&r and if the rear stuff is broken then I would prefer to just bypass the adjustments and use the non adjustable spring set. Thanks.

Are you familiar with SLS? You might have a dead accumulator on the side that clunks.

I don't think you can swap in lowering springs and expect a healthy suspension. SLS is calibrated for ride height and will do what it can to achieve it. You can adjust ride height but that will likely lead to uneven tire wear. A spring meant to take dynamic weight will cause comfort issues with SLS. The coil spring there now only takes static weight. It holds up the car when the SLS strut is inactive or being serviced. It won't support the weight of the car loaded and being driven.

If you insist on lowering the car, get an S320 or S420 without SLS or see about retrofitting a non SLS rear suspension. Mind the diff ratio.

Sixto
98 E320s sedan and wagon

I have read up on lowing a car with sls. It's possible and with good results. I just need to find out what is causing the bottoming out. To decide if I will fix it or bypass it. I will Google the accumulater