Harsh Ride From Rear Due to Failed Dampening Actuator on Mercedes-Benz S320

Problem Description and Possible Solution

Vehicles with automatic level control that ride harshly in the rear (no give in the suspension) may have one or both dampening actuators which have failed. It is commonly recommended the actuators be replaced in pairs.

Problem Data
RepairPal Verified
Average mileage: 112,394 (100,000–124,789)
6 model years affected: 1994, 1995, 1996, 1997, more1998, 1999
8 people reported this problem
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Rear passengers felt sick as they were bounced around. Both helium filled rubber hydraulic shock systems had gone. These rubber domes provide a shock system, the rear dampers are hydraulic and the helium filled domes in the back have a rubber membrain that finally rots. These can be replaced, all is the back to normal. But the job is complex and takes at least 5 hours