2019-2023 McLaren 720S: Fixing a Loose Convertible Top Switch
This guide covers the symptoms, causes, and repair of a broken convertible top switch bracket in the McLaren 720S Spider.
- The primary symptom of a failed bracket is a loose, wobbly, or recessed convertible top switch, which prevents roof operation.
- Replacement is a difficult (4.5/5) job requiring extensive disassembly of the center console and is not recommended for novice DIYers.
- There are no official recalls or TSBs for this specific part; failure is due to mechanical stress, not a widespread defect.
- Used OEM brackets are a cost-effective solution, but must be inspected carefully for cracks or damage before purchase.
Symptoms of a Failing Convertible Top Switch Bracket
Unlike electronic sensor or motor failures, a broken switch bracket presents purely physical symptoms. If you experience any of the following, the bracket is the likely culprit.
- Loose or Wobbly Switch: The most common symptom is a convertible top switch that feels loose, wiggly, or unstable in the center console. It may move around when you press it instead of having a solid, tactile click.
- Recessed or Sunken Switch: A completely broken bracket may allow the switch to fall through its opening and become recessed into the center console. You may not be able to press it at all.
- Inoperable Convertible Top: If the switch cannot be properly pressed, you will not be able to initiate the open or close sequence for the roof. The car will not register the command. This should not be confused with electronic faults, which may display a warning message on the dash. A broken bracket typically results in no system response at all.
Buying a Used Convertible Top Switch Bracket
Given the high cost of new McLaren parts, a used OEM bracket is an excellent value. Since there are no known aftermarket replacements, a recycled original part is often the only alternative to a new one from the dealer. When purchasing a used bracket, perform a careful inspection.
Pro Tip: The OEM part numbers for the bracket set are 14A1614SP and 14A1616SP. Verify these numbers before purchasing to ensure compatibility.
- Check for Cracks: Carefully inspect the entire part, especially around the screw holes and mounting tabs. Look for hairline fractures or stress marks, which appear as faint white lines in the plastic. These indicate the part is weakened and may fail soon.
- Verify All Mounting Points are Intact: Compare the used part to photos of a new one. Ensure all tabs, clips, and screw bosses are present and free of damage. A bracket with a broken mounting point will not install securely.
- Avoid Glued or Repaired Parts: Do not purchase a bracket that shows signs of being glued or repaired with epoxy. These repairs rarely hold up to the repeated force of pressing the switch and are likely to fail again.
Known Issues, TSBs, and Recalls
As of mid-2024, there are no specific recalls or Technical Service Bulletins (TSBs) from McLaren or the NHTSA related to the convertible top switch bracket for the 2019-2023 720S.
While the 720S has been subject to a few safety recalls, they pertain to other systems:
- NHTSA Recall 20V231: A foam pad under the fuel tank could trap moisture, leading to corrosion and a potential fuel leak.
- NHTSA Recall 21V541: A brake assembly banjo bolt may have been manufactured incorrectly, potentially causing a loss of braking on one wheel.
- NHTSA Recall 25V244: A small number of vehicles may have had brake lines routed incorrectly to the ABS module.
These issues are unrelated to the convertible top mechanism. Problems with the switch bracket are due to mechanical stress or material fatigue rather than a widespread manufacturing defect.
Replacement Information
Replacing the convertible top switch bracket on a McLaren 720S is a complex task recommended for experienced technicians or dedicated DIYers with a high level of skill.
- Installation Difficulty: 4.5 out of 5
- Estimated Time: 3-5 hours
- DIY Feasible: Not recommended for beginners.
The procedure requires significant disassembly of the vehicle's interior. Accessing the bracket involves removing the center console, which has been described by technicians as a difficult process involving numerous hidden screws and delicate trim pieces. Videos of 720S interior disassembly show that the entire center console assembly must be unbolted and lifted out to access the components within. Due to the complexity and the risk of damaging expensive carbon fiber or leather trim, most owners should entrust this job to a qualified specialist familiar with McLaren vehicles.
Warning: The center console area houses wiring for multiple vehicle systems. Before beginning any work, it is critical to disconnect the vehicle's battery to prevent electrical shorts or accidental deployment of safety systems.
Cost Comparison
The cost for parts and labor can vary significantly. Aftermarket options are not available for this component.
| Part Type | Estimated Cost |
|---|---|
| New OEM | $400 - $600 (Estimate) |
| New Aftermarket | Not Available |
| Used OEM | $150 - $250 |
| Shop Labor | $600 - $1,000 (Estimate based on 3-5 hours at specialist rates) |
Frequently Asked Questions (FAQ)
Can I still operate my convertible top if the switch bracket is broken?
No. If the bracket is broken, the switch will likely be too loose or recessed to properly activate the roof mechanism. You will not be able to open or close the top until the bracket is replaced and the switch is securely mounted.
Is this a common problem on the McLaren 720S Spider?
While not a widely reported systemic issue, physical failure of plastic interior components can occur over time from use. The symptom of a loose or wobbly switch is a known issue on other vehicles with similar switch designs.
My roof stops halfway. Is that the switch bracket?
Unlikely. A roof that starts the sequence but stops mid-operation is typically caused by a faulty sensor, a misaligned component, or a hydraulic issue. A broken switch bracket usually prevents the sequence from starting at all.
Why can't I just glue the broken bracket?
Adhesives are generally not strong enough to withstand the repeated pressure and stress of switch operation. A glued repair is likely to fail quickly, requiring you to perform the difficult console removal a second time. Replacing the part with a new or used OEM component is the only reliable, long-term solution.
Technical Specifications
OEM Part Numbers: 14A1614SP 14A1616SP
Material: Molded plastic. Location: Center console. Function: Mounts the convertible top operation switch.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- McLaren 720S: