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Mercedes-Benz S500 Problems

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.

(22 people reported this problem)

Mercedes-Benz S500 Vehicles With This Problem

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Average mileage: 116,355 (10,800–189,000)
7 model years affected: 2000, 2001, 2002, 2003, more2004, 2005, 2006
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Viewing 1-7 of 7 comments
left rear at times not failing to completely rise, I have to press airmatic button to assist; I've h ad entire system replaced about 4-5 yrs ago. Also central locking/door-trunk close-assist is not functioning.. but times when I manually unlock the trunk and upon closing it I hear/feel the ??pump/system-or something kick-in/engage as the trunk will close under pressure, but nothing else will. I've replaced fuses over and over... nothing. Sporadically the driver door will remotely lock, but it's all usually done via passenger side or resetting by quarter-turning the trunk... sounds crazy, but it works and allows me to keep the alarm vs if I go totally manual key.
Besides the above noted things, it's a beast... (AMG) , I have a great shop/mechanic- Coates Foreign Auto Griffin, GA the owner was/is ?? mercedes technician I don't know if their are a part of your network, but I can assure you they are top-notch... because I was at Theo's... just too far to travel; both are 5-star with great rates when you size up to MERCEDES!!! ;)
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.