2001 Mercedes S55 Active Suspension fault
Posted: Tue Oct 09, 2012 12:59 pm
Wow this car really is wanting to tick me off. lol.
I have in my shop a 2001 S55 Mercedes with the Active Suspension system. (ABC). This system is hydraulic, and runs off the power steering pump. Originally it came in with the entire right side collapsed onto the wheels. I used my MaxiDAS 708 scan tool to check the system, and it had fault codes for right side low, and low pressure in the system. I ran a system test to actuate the entire system. The "Rodeo" test is supposed to individually and group-wise activate the 4 struts. Well it raised up the right side, collapsed the left, then stopped. Now when I try to activate anything, my scan tool states "requirements not met" for running the test, and the new code is "left side low". However when I compared the vehicle to the requirements, I have everything matched. I have tried to run all of the different tests listed, and every one will respond with the same "enable requirements not met". I have all of them met, so I have no idea why it is not working. I told the customer that I would be able to find the problem for them, so I don't want to sublet it to Mercedes. I don't want a customer to lose faith in my shop. (Another reason I never sublet to other shops) Anyone have experience with this system? I have done some research and I know that there are a lot of problems with this system. I want to at least locate the failed part(s) and then talk to the customer about options. Does ANYONE know anything about these systems?
I have in my shop a 2001 S55 Mercedes with the Active Suspension system. (ABC). This system is hydraulic, and runs off the power steering pump. Originally it came in with the entire right side collapsed onto the wheels. I used my MaxiDAS 708 scan tool to check the system, and it had fault codes for right side low, and low pressure in the system. I ran a system test to actuate the entire system. The "Rodeo" test is supposed to individually and group-wise activate the 4 struts. Well it raised up the right side, collapsed the left, then stopped. Now when I try to activate anything, my scan tool states "requirements not met" for running the test, and the new code is "left side low". However when I compared the vehicle to the requirements, I have everything matched. I have tried to run all of the different tests listed, and every one will respond with the same "enable requirements not met". I have all of them met, so I have no idea why it is not working. I told the customer that I would be able to find the problem for them, so I don't want to sublet it to Mercedes. I don't want a customer to lose faith in my shop. (Another reason I never sublet to other shops) Anyone have experience with this system? I have done some research and I know that there are a lot of problems with this system. I want to at least locate the failed part(s) and then talk to the customer about options. Does ANYONE know anything about these systems?