Active Body Control System Can Leak Hydraulic Fluid on Mercedes-Benz S500

Problem Description and Possible Solution

The active body control system can leak fluid from numerous areas, including the tandem pump, hydraulic lines, struts, and/or seals. If it is not repaired, the vehicle ride height could drop too low and cause damage to the undercarriage.

Problem Data
RepairPal Verified
Average mileage: 112,650 (10,800–189,000)
7 model years affected: 2000, 2001, 2002, 2003, more2004, 2005, 2006
19 people reported this problem
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Right front sits down after 3 days sitting idle. Filtered fluid and changed filters several times. Finally notice leak from Steering pump with needed to be replaced at a cost of $4000. After repair, shop stated that it still sits down and may require additional valve block replacement, and additional $2800.