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.
Car Problem Reports
Mercedes-Benz S600 Active Body Control System Can Leak Hydraulic Fluid
Mercedes-Benz S600 Problem
Average Mileage: 65,822 mi (28,400 mi - 128,500 mi)
Visitor, 2007 Mercedes-Benz S600
ABC fluid leaked out while sitting in the garage called MBUSA. This company does not want to admit that there is a serious problem with these ABC systems. However they put the blame on the dealer. My dealer in SC has supported me fully with the repairs. Current owner of two Mercedes Benz MBUSA will never have to worry about me owning another one. My dealer is great, but the customer service of MBUSA backing their inferior product convinced me that MB has lost its edge on quality. PRODUCT AND CUSTOMER SERVICE!
Visitor, 2007 Mercedes-Benz S600, 52,000 mi
high pressure hose of abc system (the one that comes to top of car then u's and goes back down) popped a hole lost all fluid fixed hose now year later 65000 miles other side pops and down again till buy another hose and fluid this is crap mercedes knows they need to fix this problem
Visitor, 2008 Mercedes-Benz S600, 75,000 mi
Leaking fluid; ride height compromised. In for repair discussion tomorrow. Just flushed brakes 5k ago; not sure if there is any relationship, probably not.
Failure of ABC hydraulic pump due to fluid leak in line
Visitor, 2001 Mercedes-Benz S600, 128,500 mi
Rear body of car is low.
This is the third time I had a problem with the ABC system. The first time I heard a pop sound and found that some oil was leaking, then six month later the problem happen again, with oil leaking again, and now again. Why can't the Mercedes Dealership fix the problem right the first time.
Visitor, 2009 Mercedes-Benz S600, 28,400 mi
ABC Hose broke- $1600 to fix
Visitor, 2005 Mercedes-Benz S600, 54,000 mi
Leak in suspension leveling hose. cost of repair asked by official MB: $ 3,700...
Visitor, 2007 Mercedes-Benz S600, 45,285 mi
Leak in ABC hose upon ignition first thing in the morning. Unable to operate safely. Trailered to shop and price to repair is quoted at $1726.85. Quite a fee for less than 2 feet of hydraulic hose and fluid.
Visitor, 2002 Mercedes-Benz S600, 90,000 mi
ABC problem, leak from broken hose