I have a 2003 mercedes benz cl55 amg. the abc or active body control system failed and with very little warning, the fluid started to leak , smoke was everywhere and i nearly caused a collision because of the thick smoke and poor visibility. i had to pull over immediately and have the cl55 towed to my mechanic my mechanic, who specializes in high end mercedes benz told me that this is a very common issue with the mercedes cl 55,65,600 models from 2003-2006. mercedes knew about this particular problem and redesigned the later models. the original sticker price of the cl model is about $120,000. mercedes knew about this issue with the abc system on the amg models but did not make a factory recall. i have know met several other owners of the same model car, 2003-6 cl55 amg and all of them had to have the entire abc system replaced which is well over $5500. also , a website dedicated to mercedes benz, called benzworld.com, have numerous owners who have had this particular problem with the abc system. there is a campaign of current owners who are planning to file a class action lawsuit. the breakdown of the abc system while drive comes very suddenly and with very little warning. i am very lucky to avoid an accident when it happened to me. the repair is not only very costly ( $5500 ), but will continue to break down again even after being replaced by original mercedes parts because of the flawed design. instead of a class action lawsuit, the nhtsa should force mercedes have a mandatory recall on the 2003-2006 cl amg models to address this potentially dangerous problem. *tr