I have a 1981 Mercedes 500 SEL with hydraulic suspension it bounces like crazy and the back end sit's up pretty high someone told me i need to bleed the shock's but im not sure where to start i dont know how to bleed the shock's ive never had this problem befor with normal car's is there some kind of fitting where i can loosen it so the air would escape does anyone know about mercedes suspension?? Can you please help me out i would gladly appreciate it Thank You...