I have a Euro spec 1985 190E 2.3-16 with SLS suspension in the rear.
The suspension has become really hard in the rear, and passengers in the back seat virtually knock their head in the roof when passing over bumps in the road. I don't think the suspension always was this hard, but I've only owned the car for a couple of months and this problem has become more evident now that the roads here in Norway are finally free of snow (at last
Also, when looking at the car from the side, you can see that the car appears lower in the rear. I can barely get my hand between the wheel and the wheel arch in the back, whereas in the front there is about 5-7 cm between the wheel and the arch. I'm fairly certain that the suspension is stock. I can take a picture of the car later for you to see.
Anyway, my question is can something be done to fix this? Could the SLS system be low on hydraulic fluid or something, or do you thing the shocks or springs are ready for replacement? The shocks alone cost over $400 per unit here in Norway, so I hope I don't have to replace them.