Parts for your 2024 Mazda 3-Gas struts

2024 Mazda 3 gas-struts: what they do and when to sort them

Based on Mazda technical literature for the BP-series Mazda 3 (Owner’s Manual 2024 AU/NZ: Liftgate/Boot Lid, and Workshop Manual: Body/Liftgate), gas-pressurised struts are fitted to the 2024 Mazda 3 Hatch for the rear liftgate. The 2024 Mazda 3 Sedan uses torsion-bar hinges for the boot (no gas struts), and the bonnet on both body styles uses a prop rod from factory.

On the 2024 Mazda 3 Hatch, the gas struts do the heavy lifting for the tailgate. They hold the hatch up safely, slow it down on the way up and down, and keep the motion smooth so there’s no slam or bounce. They’re sealed, gas-filled dampers, so there’s no routine service interval, but they do wear over time—especially with heat, dust, and lots of open/close cycles.

Good struts make daily use easy: one-hand opening, no shoulder strain, and a hatch that stays put even in a breeze. When they’re tired, the hatch can sag, lift unevenly, or feel heavier than usual. If it needs a hand to stay up, it’s time.

• Common signs they’re on the way out: hatch dropping or drifting, a hiss with little resistance, oily film on the shaft, or needing to heave it open.
• Replacement tips: do them in pairs, support the hatch with a prop or a mate, match the part number and Newton rating, and orient the body of the strut uppermost (rod down) as per Mazda service guidance.

There’s no set kilometre-based replacement, but many owners see 5–8 years depending on climate and use. As part of regular servicing, a quick check is smart: make sure the hatch rises smoothly and holds at full height, wipe the strut shafts clean with a lint-free cloth, and avoid nicking or scratching the chrome surface. Don’t try to “re-gas” sealed units—once performance drops, replacement is the go.

Installation is straightforward with basic tools: pop the retaining clips, swap the struts, and clip them back on the ball studs. Don’t pry on the clip too far and don’t twist the strut body. A dab of suitable grease on the ball sockets can prevent creaks, but keep lubricants off the shaft seals.

For Sedan owners: the boot uses torsion springs, so there aren’t any rear gas struts to service. The bonnet uses a prop rod on both Hatch and Sedan, aftermarket bonnet strut kits exist, but they’re not an OE fitment.

Popular questions

Does the 2024 Mazda 3 Sedan have gas struts on the boot?
The Sedan uses torsion-bar hinges for the boot lid, so there are no gas struts at the rear. Only the Hatch has gas-pressurised struts on the liftgate.

How long do the Mazda 3 Hatch gas struts last?
There’s no fixed lifespan, but 5–8 years is common. Replace them when the hatch no longer lifts easily or won’t hold at full height—always in pairs for balanced operation.

Can the factory gas struts be re-gassed?
No. The OE units are sealed. Once they weaken, the correct fix is replacement with new struts that match the original force rating and fittings.