Originally Posted by
nickwe21
I have also wondered what makes the cylinders leak. I purchased a SRT6 Roadster two years ago with 25K miles in factory shape from a gentleman who only drove it in the summer and rarely at that. He moved from Colorado to Florida. I now have 40K miles on it and the two main lift cylinders started leaking just now. The car has only been in Florida for the last two and a half years.
Now, one could say maybe he didn't cycle the top enough during the winter months in Colorado? But I actually asked a hydraulic cabriolet shop in Sarasota the same question recently. They are strong believers that hydraulic fluids should be replaced every 10-15 years. They believe that sediments and pollutants will settle in the fluid causing the o-rings in the cylinders to break. I don't know if that is the only reason but it sure sounds plausible. Obviously anytime you deal with o-rings the Florida heat probably isn't kind to them either. Something to think about and one reason I have asked on here if the fluid should be replaced....I think that might be my weekend project.
I can tell you this: I changed out all my hydraulics and then found my pump was leaking. I hoped it was my fill plug but after an exhaustive investigation, it was the pump. I replaced it and found in the old pump black stuff on the bottom of the reservoir. For this reason; I agree that the fluid should be changed.