WE ARE NOT JUST SELLING YOU A BAG OF O-RINGS SENDING YOU OFF TO FIGURE THE REST OUT FOR YOURSELF LIKE OTHERS OUR KITS INCLUDE: A MULTIPAGE GUIDELINE WITH O-RING IDENTIFICATION LOCATION CYLINDER BREAKDOWN DRAWINGS STEP BY STEP REPAIR OF A CYLINDERS HYDRAULIC PUMP REFILL KIT WITH INSTRUCTIONS This is for the seals to rebuild the 5 hydraulic cylinders that raise, lower, and lock your retractable roof, with multi-page guideline, PLUS a Free Hydraulic Pump Refill Kit With Instructions. This set of 5 O-rings is what you need to rebuild all 5 of your car roof's hydraulic cylinders. The O-rings in the kit are organized by cylinder, so you know which ones go to which cylinders. This is an upgrade to the OEM seal, which is not capable of withstanding the aggressive/corrosive hydraulic fluids. The Nitrile Rubber compound used in this seal is exceptionally resistant to petroleum based oils, found in hydraulic fluids used in the Mercedes Benz convertible top hydraulic system. Fits the following vehicles built on the Mercedes R170 chassis: R170 MODEL FROM TO SLK200 1997 2004 SLK200K 1997 2004 SLK230K 1996 2004 SLK320 2001 2004 SLK32 AMG 2001 2004 Item includes 5 Nitrile 70 rubber O-rings a Multi-page illustrated guideline. For repair of Mercedes Benz part numbers: NUMBER DESCRIPTION PART NUMBER 1 FRONT LOCK CYLINDER 1708000072 2 RIGHT ROOF MAIN LIFT CYLINDER 1708000672 3 LEFT ROOF MAIN LIFT CYLINDER 1708000572 4 RIGHT TRUNK LID FRAME CYLINDER 1708000272 5 LEFT TRUNK LID FRAME CYLINDER 1708000372 www..com | Cross Sell, Free Cross Sell, Cross promote, Marketing, listing Apps, Apps, Application PLEASE READ This hydraulic cylinder repair kit is not sponsored or endorsed by Mercedes Benz in any way. The kit is and aftermarket product designed and produced by Wesbaun Consultants Inc to repair the failed, leaking Mercedes Hydraulic Cylinders that Raise, lower Lock the convertible roof into position. The kit includes seals which are a direct replacement for the failed urethane oem u cup ROD seals Mercedes will tell you the cylinders cannot be rebuilt and will want to sell you a completely new cylinder costing $$$$. All hydraulic cylinders in vehicles or machinery you come across can be rebuilt. That?s why there are many companies out there that manufacture replacement seals. If you are competent with the use of basic hand tools this kit is a DIY project for you and will save you $$$$ We will not be found responsible for misuse, misinterpretation and poor workmanship when installing the seals. Correct installation is responsibility of the Buyer, we are not responsible for the outcome of installations performed by third party installers like your mechanic. If you do use a mechanic please ensure he has carried out this installation procedure competently before Shipping Alert Currently the United State Postal Service are experiencing delays with some mail deliveries, due to the current environmental situation, office closures, volume of mail and lack of transportation. Mainly associated with but not limited to First Class They have indicated to us that in some cases it's taking a minimum of 10 business days Please note if your package is delayed, which can be seen from the tracking number we provide, please be patient as it's not our fault. Also, we advise you to use the tracking system on the USPS website as it's more accurate and up to date. Please Read In an effort to enhance the customers experience and to help further with the installation, we have adopted the following We used to print out the installation guidelines, however in some instances we received constructive feedback from the buyer asking us to email the original document as the printed versions, in some cases were dark and grainy which made it hard to follow. The files are actually too big to email and in most cases get bounced back undelivered by the recipients email server, therefor when you receive your order you will see a link via a QR code and also a web link version of the QR code that will take you to a crisp clear and in most cases color version of the guideline