Its finally time to start refreshing my 240D and I am going to start with the suspension. The car has been basically parked since last fall since the rear end of the car started feeling loose and making all kinds of strange noises so I am going to start there. I am having a nearly impossible time finding parts that are not URO or Meyle though. I am also thinking that I should replace the rear springs since it seems that the car is sagging a little in the rear compared to other W123's I see. Are all W123 sedan rear springs the same? I don't want to end up with a jacked up rear. Pelican sells Bilstein brand rear springs. Han anyone used these?