Active Body Control System Can Leak Hydraulic Fluid on Mercedes-Benz SL55 AMG

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.

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Average mileage: 58,133 (30,000–100,600)
6 model years affected: 2003, 2004, 2005, 2006, more2007, 2008
19 people reported this problem
8 people shared problem details
body on SL55 AMG keeps dropping within two or three hours, need to raise body prior to driving. MB wants $7,0000 to fix the metering valves?
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ABC unit leaking for acumimlater
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ABC pump(aka tandem pump) leaking fluid. $2700 to repair; pump $1950, labor $750.
Having same problem. Sometimes car levels and sometimes it give messages to"drive carefully " in red Replacement parts quite expensive
Left Front tire dropped after 1-2 days of parking. ABC Light comes on and warning said car too low. I hit the raise level then everything goes back to normal until a couple days later. Thinking about taking it back to dealer to get "jacked".
for the past week my SL55 AMG has been dropping approximately 3 inches while stopped at red lights and stop signs...today, I found a lot of fluid under my car, and when I powered on my vehicle, a red ABC light came on along with the warning, "Drive carefully". I'm about to take my vehicle to the shop here in town to determine the cost of repair...I came here looking for a general estimate on the cost. Last time I took my vehicle in for repairs, I was charged $1,500 for what was essentially a fuse replacement... I don't want to get jacked around again.
tandem suspension pump is bad $2,800 repair...oouch
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