![]() ![]() The piston seals have been made of different materials and sizes even in the same p/n cylinders throughout the years. They seal the input and output sections from each other, as the piston slides through the cylinder. These are usually the first seals to fail in the cylinders.Ģ) Piston seals. When they fail, you will see fluid coming out next to the chromed shaft (rod). They are cup-shaped and seal the piston rod from the rest of the cylinder. ![]() Top Hydraulics replaces and upgrades ALL seals in the cylinders with our superior proprietary material:ġ) Rod seals. What fails most frequently, are the other seals, which have special shapes for proper function. Every R129 cylinder has one o-ring, and those rarely ever fail. Rebuilding these cylinders is NOT a matter of changing o-rings. (The left tonneau cover lock was omitted after 1996.) The original seals in the hydraulic cylinders, aka rams or actuators, will eventually fail in every R129, unless it gets wrecked prematurely, even if you never drive the car or have never used the top before. Model years 1990-1996 have twelve hydraulic cylinders, while 1997-2002 models have eleven hydraulic cylinders that move and lock the roadster soft top. We have two order methods: Either you send in your cylinders first, or choose to "Order now with Core Exchange". Note also our rebuild service for hydraulic valve blocks, distributors, and pumps, as well as manufacture new, superior hydraulic hoses.ĭIY cylinder rebuild will usually lead to unintended damage - we have seen thousands of ruined cylinders from failed DIY repair attempts! Top Hydraulics' cylinder rebuild service is widely known as the best possible option, even if you are an excellent Do-It-Yourselfer. Rebuild/Upgrade Service for convertible top hydraulic components on Mercedes R129 models 280SL, 300SL, 500SL, 600SL, S元20, SL500, SL60, SL600, SL73. I hope my experience shows you that Mercedes ownership is not expensive as one might expect.Mercedes Benz R129 SL-Class | Model Years 1990 - 2002 This car holds a special place in my heart, we went through undergraduate, corporate life and now graduate school together. Although if you do sit in this slk you will see a strong resemblance between this and the 2007-2012 cayman interior. Now I will move on and purchase a Porsche Cayman S or 2013 Porsche 911. I passed inspection by getting a exemption permit each year. The next major issue is that the hydraulic powered hardtop's seals go bad after around 10 years in age and they leak into the headliner, I fix this by completely draining out the fluid for $25. Oil gets caught up in this because after the car is around 12 years old the supercharger spits oil into the MAF. Note: I purchased this in 2009 for $10,500 so my total costs excluding the $75 oil changes was about $1k a year when you factor in my purchase price and resale value, not bad right? haha I must also include that during my past 3 years of ownership that this car doesn't pass NC inspection due to the MAF sensor. Now i am in my final semester in my dual-masters program and in a few months I will tell my car goodbye and sell her for $5-6k with 155k mi. This was mainly because I did a complete overhaul 3 years ago replacing all worn parts(suspension, motor mounts, drilled and slotted rotors and new pads, spark plugs, mass air flow, etc) before I started working in finance. 2) Repairs- cost $2,500 over 8 year term. 1) first car accident( rear-ended at red light) no visible damage but the Honda Civic was almost totaled by her insurance. Owning this car through the past 8 years has been a pleasure. When I got this I was looking at Honda S2000's but my parents had an affinity towards Mercedes-Benz so we agreed on this as a nice compromise. Purchased in 2009 when I graduated highschool this was my first car ownership experience. ![]()
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