Convertible Top Strut Replacement: DIY Steps

Convertible top stowage compartment lid struts wear out over time, losing their ability to support the weight of the lid and making it difficult or unsafe to open and close. Replacing a worn strut is a moderately difficult DIY task suitable for owners with basic mechanical experience and some familiarity with hand tools. Most strut replacements take between 1 and 3 hours, depending on your vehicle's design and how easily you can access the mounting points. These instructions provide general guidance; specific tools, torque specifications, fastener locations, and procedures vary significantly by vehicle make and model, so you should consult your vehicle's service manual before beginning work.

What You'll Need

Tools

  • Socket set (typically 8–15 mm sockets) and wrench set
  • Torque wrench (10–50 ft-lb range) for fastener tightening
  • Floor jack and jack stands (if needed for vehicle access)
  • Phillips head and flathead screwdrivers
  • Plastic trim removal tools or pry bars (to avoid damage to interior trim)
  • Work light or flashlight
  • Rags or shop towels

Parts & Materials

  • Replacement convertible top stowage compartment lid strut assembly (one or both struts, depending on vehicle design)
  • Replacement fasteners (bolts, clips, or mounting hardware as needed)
  • Silicone-based lubricant or grease suitable for automotive rubber and metal components

Before You Begin

  • Ensure the convertible top is in the fully closed and locked position, and verify that the stowage compartment lid is securely closed and latched to prevent accidental movement during removal or installation of the strut.
  • Disconnect the vehicle's battery negative terminal to avoid any unexpected electrical activation if the compartment lid has power-assist features.
  • Position your vehicle on a level, stable surface and use jack stands to support the vehicle securely if you need to access the strut from underneath or if the compartment lid needs to be fully opened for extended periods during work.
  • Convertible top struts are tensioned components under load. If you are not experienced with suspension or strut replacement, or if you feel uncertain at any point, stop work and have a qualified mechanic perform or inspect this repair to ensure proper installation and safety.

Step-by-Step: How to Replace Convertible Top Stowage Compartment Lid Strut

  1. Open and prop the compartment lid safely. Carefully raise the stowage compartment lid to its fully open position. If the old strut is worn and cannot support the lid's weight, use a wooden prop, adjustable rod, or strut support tool to hold the lid open while you work. Do not allow the lid to fall or slam during this process, as it can cause injury or damage.
  2. Locate the strut attachment points. Examine both the lower end of the strut (where it connects to the compartment frame) and the upper end (where it connects to the lid). Note the position of each fastener—typically bolts or clips—and take reference photos before you begin disassembly to help with reassembly.
  3. Remove the lower fastener from the frame. Using the appropriate socket, wrench, or screwdriver, remove the bolt or clip that secures the lower end of the strut to the vehicle's body frame. Keep all fasteners in a small container so you do not lose them, and set them aside in the order you remove them.
  4. Remove the upper fastener from the lid. Unscrew or unbolt the upper attachment point where the strut connects to the underside of the compartment lid. You may need to use a trim removal tool to gently pry away any plastic caps or trim pieces that cover the fasteners without damaging the surrounding interior trim.
  5. Carefully extract the old strut. Once both fasteners are removed, the old strut should come free. Pull it out at a slight angle to avoid catching it on the frame or lid edges. If the strut feels stuck, do not force it; check for any remaining fasteners or trim pieces you may have missed.
  6. Position and align the new strut. Hold the new strut in place, aligning the upper mounting hole with the attachment point on the lid and the lower mounting hole with the frame attachment point. Ensure the strut is oriented correctly (the same way the old one was positioned) so it can extend and compress smoothly.
  7. Install the lower fastener. Insert the bolt or clip through the lower mounting point and into the frame, then hand-tighten it first to ensure correct alignment. Once the strut is properly positioned, use a torque wrench to tighten the fastener to the specification listed in your vehicle's service manual—do not over-tighten, as this can strip threads or crack plastic mounting tabs.
  8. Install the upper fastener. Secure the upper end of the strut to the compartment lid using the appropriate bolt or clip, again hand-tightening first and then torque-tightening according to your manual's specifications. Ensure the strut can move freely without binding against the frame or lid.
  9. Test the compartment lid operation. Carefully lower the lid and open it several times to confirm that the new strut provides smooth, balanced support. The lid should open and close without sticking, sagging, or requiring excessive force. If you notice any resistance, binding, or imbalance, recheck the fastener tightness and strut alignment before using the vehicle.

Tips for a Successful Convertible Top Strut Replacement

  • Photograph or label fastener locations, washers, and clip orientations before disassembly so you can reinstall them in the correct order and position. This prevents confusion and ensures all components are seated properly.
  • Always use a torque wrench set to your vehicle's manual specifications when tightening fasteners. Hand-tightening alone is not sufficient, but over-tightening can damage the strut mounting tabs or crack plastic trim, so precision matters here.
  • If the replacement strut feels noticeably stiffer or looser than expected after installation, recheck all fastener tightness and verify that the strut is fully seated at both mounting points. A strut that feels too loose may not provide adequate support, while one that feels too stiff may indicate misalignment or a defective replacement part.
  • Apply a thin layer of silicone-based lubricant to the moving joints of the new strut if your vehicle's manual recommends it. This can help ensure smooth operation and extend the strut's service life, but do not over-lubricate, as excess lubricant can attract dirt and debris.

When to Call a Professional

If the compartment lid frame is visibly bent, cracked, or damaged, or if the strut bays are severely corroded or deteriorated, professional repair or component replacement will likely be necessary—a DIY strut replacement alone will not solve these underlying structural issues. If fasteners are seized, stripped, or corroded, or if the strut mounting points are damaged, a professional mechanic will have the specialized tools and expertise to extract broken fasteners safely and repair or replace the mounting structure. Additionally, if you are uncomfortable working with strut-loaded components or have no prior mechanical experience, a qualified mechanic should handle the job to ensure correct installation and safety. Improper strut installation can result in the compartment lid failing to open or close correctly, creating a safety hazard and potentially damaging the lid or frame over time. Always have a certified mechanic verify the work if you are uncertain about any step or if the lid does not operate smoothly after your installation.

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