Hello, don't know if anyone here can help me or not, but I have a mercedes slk230. I had a hydraulic leak problem with the locking/unlocking roof cylinder. I took it to a local mechanic. They hooked up the hydraulic lines backwards to the pump. The corresponding check valves in my pump were damaged and they say crossing lines would not damage the valves. I
believe they were cause the roof was operating fine even while leaking fluid. Can anyone tell me the effects of inverting hydraulic lines to the pump?