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Can I add soft close doors to my car?

Yes, in many cases you can add soft-close functionality through aftermarket kits or, on some models, through dealer-installed options. Whether it’s feasible depends on your vehicle’s door design, electronics, and warranty terms.


Understanding how soft-close doors work


Soft-close doors use motorized latches, dampers, or hydraulic actuators to pull or guide a door gently closed after you begin to shut it. This reduces slams, improves seal engagement, and can enhance durability of hinges and weather seals. Factory implementations exist on some luxury and higher-end models, while aftermarket solutions aim to replicate the effect on a wider range of vehicles. The practicality of retrofitting depends on space, wiring, and control signaling in your car’s electrical system.


Feasibility by vehicle and options


There are several routes to add soft-close capability, but suitability depends on door design, available space, and electrical system compatibility. The following options represent the main paths you’ll encounter.


Common retrofit options you might encounter include:



  • Aftermarket soft-close door kits that install actuators or modified latches on individual doors, paired with a control module to manage the closing action.

  • Soft-close tailgate or liftgate kits for SUVs and wagons, which apply the same principle to the rear hatch or trunk.

  • OEM retrofit or dealer-installed options for select models, sometimes offered as a factory option or through authorized service programs.


These options vary in difficulty, cost, and compatibility. A careful assessment is essential before proceeding.


What to consider before proceeding


Before committing to a soft-close retrofit, consider the following factors to gauge feasibility and risk.



  • Model compatibility: Not every door type or chassis supports retrofitted soft-close actuators; verify with a qualified technician or the manufacturer.

  • Warranty impact: Aftermarket kits can void or complicate the vehicle’s warranty; confirm terms with the dealer or manufacturer before installation.

  • Installation complexity: Retrofitting often requires interior door panel removal, wiring to the vehicle’s electrical system, and potential programming of control modules or CAN bus signals.

  • Cost and value: Parts, labor, and possible customization add up; weigh the expected benefits against the overall investment.

  • Reliability and maintenance: Consider long-term durability, availability of replacement parts, and service options if the system fails.

  • seals and weatherproofing: Ensure that retrofits preserve door sealing and water intrusion protection; improper installation can lead to leaks.

  • Safety and compatibility: Ensure the system does not interfere with airbags, seat sensors, or other safety systems.

  • Insurance and resale: Check whether the retrofit affects insurance policy terms or resale value, and keep documentation of installed components.


Doing thorough due diligence—and preferably consulting a trained automotive technician or the dealership—helps prevent misfit issues and ensures that any retrofit preserves safety and reliability.


Summary


Soft-close door retrofits are possible on many vehicles, but not universal. Availability depends on door design, electronics, and the willingness of dealers or specialists to install the system. If you’re considering a retrofit, explore OEM options where available, compare reputable aftermarket kits, and get a professional assessment to understand warranty, safety, and cost implications. With careful planning, you can achieve smoother door closure without compromising your car’s integrity.

How to stop doors from slamming when closing?


Door closers often cause doors to slam or close too quickly without adjustment options. To slow a slamming apartment door, install an adjustable door closer or a hydraulic door damper. These devices control the door's closing speed using a spring and fluid mechanism.



How much does it cost to put butterfly doors on your car?


Putting butterfly doors on a car typically costs between $2,000 and $6,500 or more, including the kit and professional installation. The conversion kit alone can cost $2,000 to $3,500, while professional installation adds $500 to $3,000+ depending on the complexity and the installer. The total price varies based on the specific vehicle, the quality of the kit, and whether the installation is done by a professional or a mechanic.
 
Cost breakdown

  • Conversion kit:
    • Prices for a kit generally range from $2,000 to $3,500, depending on the vehicle model.
    • Higher-end kits for more complex vehicles will be more expensive.
  • Professional installation:
    • This can add $500 to $3,000 or more to the total cost.
    • The final cost depends on the labor rates in your area and the specific shop's expertise.
  • DIY installation:
    • It is strongly recommended against a DIY installation unless you are a professional mechanic, as it requires significant skill and tools.
    • There is no way to estimate the cost of a DIY installation, as it would depend on the individual's time, tool, and effort. 

Other considerations
  • Vehicle compatibility: Some vehicles require more complex and expensive kits than others. 
  • Maintenance: Butterfly doors require occasional greasing to function properly, which adds to the long-term maintenance cost. 
  • Safety: Consider that in a side-impact accident where the car flips, it may be more difficult to open the doors. 
  • Weather: Opening the doors in the rain or snow could cause water to enter the cabin more quickly than standard doors. 



Are soft-close doors worth it?


Noise: Regular hinges slam, while soft-close guides doors to a silent finish. Durability: Soft-close reduces wear and tear compared to standard hinges. Safety: Slower closing lowers the risk of pinched fingers. Cost: Expect to spend $100-$200 more for a standard kitchen with soft-close hinges.



Can you retrofit soft-close?


While it's ideal to install a soft-close system during the initial setup, retrofitting is possible if: You know the original manufacturer of the door system. This ensures compatibility with the required components. The door and head rail are accessible.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.