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How do you replace left hydraulic cylinder for the convertible top?

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Can my 1995 convertable top go up manually


My convertible stopped working, the hydraulic cylinders had blown the seals. I had to disconnect the cylinders from the top. I recommend going ahead and taking the cylinders out so that they don't get in the way and prevent the top from going all the way down or damaging the top itself.

May 01, 2012 | 1995 Ford Mustang

1 Answer

Top worked fine yesterday but today tried to let down only clicked


It is a hydraulic pump that applies pressure to the 2 hydraulic pistons to raise & lower the top. So, check for something obstructing movement first.

The convertible top:
  • is motor-driven.
  • requires parking brake engaged to complete circuit for operation.
  • is equipped with a back window glass (42006) . The back window glass is permanently attached to the folding top back window curtain (52500) and cannot be opened.
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VISUAL INSPECTION CHART Mechanical Electrical
  • Damaged fluid reservoir.
  • Damaged folding top hydraulic cylinders .
  • Damaged folding top motor upper and lower hose .
  • Damaged convertible top regulator.
  • Parking brake not engaged.
  • Open power distribution box circuit breaker CONV TOP (30A), fuse junction panel Fuse 1 (15A).
  • Circuitry open/shorted.
  • Damaged convertible top switch.
  • Damaged raise/lower relay .
  • Damaged folding top hydraulic lift motor and plate kit .


  • Convertible Top Does Not Raise/Lower
  • Open circuit breaker or fuse.
  • Circuitry open/shorted.
  • Damaged folding top switch.
  • Damaged raise/lower relay .
  • Damaged folding top hydraulic lift motor and plate kit .
  • Parking brake not engaged.


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Jun 29, 2011 | 1998 Ford Mustang

1 Answer

To remove 1993 mustang conv. top cylinders should top be up or down? thanks, bill


don't have 93. here's 94

Motor Assembly, Convertible Top Removal and Installation
NOTE: The folding top hydraulic cylinder rods should be in the fully retracted position.
Use absorbent rags or a container to catch any hydraulic fluid that leaks out when removing the fittings.
  1. Remove motor and pump assembly as outlined.
  1. Loosen each folding top motor upper and lower hose fitting on the sides of the folding top hydraulic lift motor and plate kit (533A00) .
  1. Remove the folding top hydraulic lift motor and plate kit .
  1. Remove each of the service folding top hydraulic lift motor and plate kit plugs one at a time and attach the tee fitting to the replacement folding top hydraulic lift motor and plate kit . NOTE: Make sure that the o-ring is installed in the bottom of each folding top hydraulic lift motor and plate kit port before attaching the hose tee fitting.
  1. Connect the folding top hydraulic lift motor and plate kit unit to a 12-volt power source and cycle the folding top hydraulic lift motor and plate kit in and out several times to purge the air from the folding top motor upper and lower hoses (53390) . Some noise squeal may be noticed due to the air. srb~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not overfill or the reservoir seal could be blown out.
  1. Carefully remove the rubber fill plug from the back and the reservoir and check the fluid level. The level should be at the bottom of the filler hole. If necessary, add Synthetic MerconĀ® Multi-Purpose Automatic transmission fluid E6AZ-19582-B (ESR-M2C163-A2) or equivalent.
  1. Replace the fill plug with a new fill plug.
  1. To install, reverse Removal procedure.
-------------------------------------------------------------------------------------------------------------------------------
Section 01-17: Convertible 1994 Mustang. Workshop Manual
REMOVAL AND INSTALLATION Lift Cylinder, Power Top Removal and Installation
NOTE: The cylinder rods should be in the fully-retracted position.
  1. Remove pump and motor as outlined.
  1. Remove the upper and lower hose fitting from the folding top hydraulic cylinder (50600) . Use absorbent rags or a container to catch any hydraulic fluid that leaks out when removing the fittings.
  1. Remove each of the service cylinder plugs one at a time and attach the hose fittings. NOTE: Be sure each fitting is installed in the correct position on the folding top hydraulic cylinder .
    NOTE: Make sure that the tetra seal is installed in the bottom of each of the folding top hydraulic cylinder ports before attaching the upper and lower hose fittings.
  1. Connect the folding top hydraulic lift motor and plate kit (533A00) to a 12-volt power source and cycle the folding top hydraulic lift motor and plate kit in and out several times to purge the air from the hoses. Some noise squeal may be noticed due to the air.
  1. Carefully remove the rubber fill plug from the back and the reservoir and check the fluid level. The level should be at the bottom of the filler hole. If necessary, add Synthetic MerconĀ® Multi-Purpose Automatic transmission fluid E6AZ-19582-B (ESR-M2C163-A2) or equivalent.
  1. Replace the fill plug with a new fill plug.
  1. To install, reverse Removal procedure.

Jan 21, 2011 | Ford Mustang Cars & Trucks

2 Answers

1996 audi cabriolet 2.8 V6 convertible top motor needs fluid how do i add the fluid to the convertible top motor?! and what type of fluid does it need?


Almost all power convertible tops are electric over hydraulic. The ecectric motor runs a hydraulic pump. The pump pushes fluid to the cylinders that work the top. Most are located behind the rear seat backrest. Either remove the rear backrest or access the motor/pump from the trunl. It will be shaped like a cylinder. At one is the electric motor, at the other end is the hydraulic reservoir. At the end of the reservoir is a rubber plug. With the top down, remove the plug and fill it with tran fluid till it over flows. replace the plug and cycle the top up and down as far as it will go. Repeat the process till it will take no more fluid. A turkey baster with a piece of vacuum line makes a good filler tool. With that said, you must find the leak. You may have a leaking pump, hydraulic line or cylinder. RNever replace one line. Do them all. Always replace cylinders in pairs.

Good luck, Karl at aoksales.com

Jan 20, 2011 | 1996 Audi Cabriolet

1 Answer

How do i get access to the hydraulic cylinders for


through the trunk or remove back seat.Bottom snaps in at the front and back should have bolts at bottom where seat was.

Jun 14, 2010 | 1966 Ford Mustang

1 Answer

1998 Mercedes Convertible Top Slow and Drips Oil


Your top is moved by an electric motor wich operates a hydraulic pump which moves two pistons which move the top.
The "oil" thet you see is probably hydraulic fluid leaking from the drain hole in the car near the tire.
You have a leak in the hydraulic system.
You need to start at the motor/pump/reservoir unit behind the seat and find the leak.
Most commonly, it is a bad line. Second in popularity is a bad cylinder(s). Third on the list is the motor/pump/reservoir.
If you replace a line, do them all. If you replace a cylinder, replace them both.

Karl at topgunwon.com

Aug 13, 2009 | 1998 Mercedes-Benz SLK

3 Answers

How much do the cylinders for the convertable top


A+ auto tops & upholstery. Can repair then for a great price. They are in Indian Harbour beach. Apluseautotops@gmail.com

Jul 18, 2009 | 2001 Mercedes-Benz SLK-Class

1 Answer

Convertible Top won't go down


Your top only has one motor. It powers a hydraulic pump that operates two hydraulic cylinders.
If one cylinder is not working, it is either damaged, worn or there is a problem supplying fluid to it.
Always replace cylinders in pairs.

Jun 28, 2009 | 1996 Chevrolet Cavalier

1 Answer

Green hydralic liquid coming from convertible top saab 2004 9-3


You are probably leaking hydraulic (ATF) fluid.
Check the lines and cylinders for leaks. Replace any leaking lines or cylinders. Always replace them in pairs.
When the leak is fixed...
Behind the rear seat is the motor/pump/reservoir.
With the top down, fill the reservoir with ATF.
Cycle the system a few times.
Repeat till the reservoir will accept no more fluid.
You can change it to a manual top by removing the bolt at the top of the cylinders and lowering the both shafts down into the cylinders.

Karl at topgunwon.com

Jun 22, 2009 | 2001 Saab 9-3

1 Answer

Convertible top


here's some info

Symptom Chart Condition Possible Source Action
  • Folding Top Does Not Raise and/or Lower
  • Blown fuse(s).
  • Circuitry open/shorted.
  • Damaged folding top switch.
  • Damaged raise/lower relay .
  • Damaged folding top hydraulic lift motor and plate kit .
  • Parking brake not engaged.
  • Go to Pinpoint Test A.
  • Top Hesitates and/or Comes Up Uneven
  • Damaged folding top hydraulic lift motor and plate kit .
  • Damaged folding top motor upper and lower hose .
  • Damaged folding top hydraulic cylinder .
  • Damaged folding top linkage.
  • Go to Pinpoint Test B.
  • Top Does Not Raise or Does Not Go All the Way Up
  • Damaged folding top linkage.
  • Damaged folding top hydraulic lift motor and plate kit .
  • Go to Pinpoint Test C.
  • Hydraulic System
  • Damaged fluid reservoir.
  • Damaged folding top hydraulic cylinder .
  • Damaged folding top motor upper and lower hose .
  • Go to Pinpoint Test D.


Lift Cylinder, Power Top Removal and Installation
NOTE: The cylinder rods should be in the fully-retracted position.
  1. Remove pump and motor as outlined.
  1. Remove the upper and lower hose fitting from the folding top hydraulic cylinder (50600) . Use absorbent rags or a container to catch any hydraulic fluid that leaks out when removing the fittings.
  1. Remove each of the service cylinder plugs one at a time and attach the hose fittings. NOTE: Be sure each fitting is installed in the correct position on the folding top hydraulic cylinder .
    NOTE: Make sure that the tetra seal is installed in the bottom of each of the folding top hydraulic cylinder ports before attaching the upper and lower hose fittings.
  1. Connect the folding top hydraulic lift motor and plate kit (533A00) to a 12-volt power source and cycle the folding top hydraulic lift motor and plate kit in and out several times to purge the air from the hoses. Some noise squeal may be noticed due to the air.
  1. Carefully remove the rubber fill plug from the back and the reservoir and check the fluid level. The level should be at the bottom of the filler hole. If necessary, add Synthetic Mercon® Multi-Purpose Automatic transmission fluid E6AZ-19582-B (ESR-M2C163-A2) or equivalent.
  1. Replace the fill plug with a new fill plug.
  1. To install, reverse Removal procedure.
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Jan 04, 2009 | 1989 Ford Mustang

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