Parts for your 2012 Subaru Impreza-Gas struts

2012 Subaru Impreza gas struts: what they do and when to replace them

Technical sources including the Subaru Global Service Manual for GJ/GP (MY2012), the Subaru FAST parts catalogue, and common aftermarket listings (e.g., Stabilus Lift-O-Mat and Monroe Max-Lift) confirm that gas struts are factory-fitted to the 2012 Subaru Impreza 5-door hatch rear liftgate. The bonnet uses a prop rod, and the 4-door sedan’s boot relies on torsion bars rather than gas struts. So, for hatch owners, gas struts are absolutely relevant, for sedan and bonnet, they’re not fitted from factory.

On the hatch, the gas-charged struts support and control the rear gate, making it easy to lift and keeping it safely open. They’re sealed units with nitrogen gas and oil that damp movement, so there’s no periodic rebuild—just inspect and replace when they get tired.

How to know they’re due? Look for the tailgate sagging, needing a helping hand to rise, slow or jerky movement, oily residue on the rod, or a noticeable hiss and weak hold in colder weather. If one fails, the other won’t be far behind, so it’s good practice to replace them as a pair to keep lift and balance even.

Servicing tips for a 2012 Impreza hatch:

• Wipe the chrome rods with a clean, dry cloth, don’t lubricate them—oil or grease attracts grit and can damage the seals.
• Support the gate with a prop or a helper before unclipping the old struts. A small flat-blade screwdriver releases the spring clip at the ball joint—no need to remove the clip entirely.
• Match strut specifications to the vehicle: body style (GP hatch), options like spoiler/rear wiper, and the correct force rating. Using VIN when ordering helps avoid mix-ups.
• Fit new retaining clips, check both ends are fully seated, then gently cycle the gate to confirm smooth action and full hold.

There’s no fixed replacement interval, but many owners see 5–8 years from a set, sometimes less in coastal or high-heat conditions. If the gate doesn’t stay up, treat it as a safety item and sort it promptly—no one needs a tailgate dropping on their head.

Workshop turnaround is quick—usually 15–30 minutes. DIY is achievable with basic tools and care, just don’t compress struts in a vice or puncture them, as they’re high-pressure components.

Do 2012 Subaru Impreza sedans have gas struts on the boot or bonnet?

No. For the 4-door sedan, the boot uses torsion bars and the bonnet uses a prop rod from factory. The hatchback’s rear liftgate is the model that gets gas struts. Aftermarket bonnet strut kits exist if someone wants hands-free lifting, but they’re not OEM on this year’s Impreza.

How long do the rear hatch gas struts last on a 2012 Impreza?

Typically 5–8 years, depending on climate and use. Coastal air, frequent use, and heat can shorten life. If the gate won’t stay up or lifts sluggishly—especially on cold mornings—it’s time to replace.

Can just one strut be replaced?

It’s possible but not recommended. Replacing in pairs keeps the lift and holding force even, stops twisting of the gate, and usually gives better longevity and feel.