Parts for your 2020 Mitsubishi Asx-Gas struts

2020 Mitsubishi ASX gas struts — what they do and how to look after them

Yes, gas-struts are relevant to the 2020 Mitsubishi ASX. Technical sources confirm factory fitment on the rear hatch: the Mitsubishi Motors ASX (2020) Owner’s Manual describes the rear gate being supported by gas-filled dampers and warns against compressing or removing them without proper support. Likewise, the Mitsubishi OEM parts catalogue (CAPS/ASA) lists left and right “tailgate lifter, gas” assemblies for 2019–2021 ASX/Outlander Sport models. Workshop service literature also includes a liftgate support removal and refit procedure. Note: the bonnet on most 2020 ASX trims uses a prop rod rather than gas struts from factory.

On the 2020 ASX, gas struts are the nitrogen-charged supports that hold up the rear hatch smoothly and safely. They counterbalance the weight of the hatch, making it easy to open and preventing it crashing down on a windy day. When they’re healthy, the hatch lifts with minimal effort and stays put at full height.

As part of routine servicing, it’s smart to check how the hatch behaves. Open it and see if it holds at full height, then stop half-way to make sure it doesn’t drift down. In cold weather weak struts often show up first. Keep the strut shafts clean, wipe away grime with a soft cloth and a touch of silicone spray on the seals only—never grease the chrome shaft as it attracts grit and can damage the seals.

Common signs the ASX’s gas-struts are due for replacement include:

• Hatch won’t stay up or drops unexpectedly
• Slow or jerky opening, especially when it’s cold
• Oil mist or staining around the strut shaft
• Needing two hands to lift the hatch

When replacement time comes, swap them in pairs to keep lift balanced. Choose struts matched to the ASX’s spec (length, end fittings, and force rating), and avoid mixing brands or ratings. Support the hatch securely with a prop or a mate while you change them—safety first. Most ASX tailgate struts use simple ball-and-clip ends, pop the clip, lever the old strut off, press the new one on, then re-seat the clip. Don’t twist the rod or clamp the shaft. If the new struts feel too stiff at first, that’s normal, they bed in after a few cycles.

With the right parts and a careful install, fresh gas-struts bring back that easy, one-hand ASX hatch operation owners expect.

Popular questions about 2020 Mitsubishi ASX gas-struts

Does the 2020 ASX have bonnet gas struts?
Most 2020 ASX models use a traditional prop rod for the bonnet, not gas struts. That’s normal for this class of vehicle and keeps weight and cost down. If bonnet gas-struts are preferred, there are aftermarket kits, but they’re not factory-fitted on most trims.

How long do the ASX tailgate gas-struts usually last?
Typically 5–10 years, depending on climate, usage, and how often the hatch is cycled. Heat, dust, and salt air can shorten lifespan. If the hatch starts to sag or feels heavy—especially in winter—it’s time to test and likely replace them.

Can ASX gas-struts be re-gassed or should they just be replaced?
For automotive hatch struts, replacement is the go-to. Re-gassing is uncommon and often not cost-effective for sealed units. New, quality struts matched to the 2020 ASX are affordable and restore proper lift and hold.