Parts for your 2005 Subaru Impreza-Gas struts

2005 Subaru Impreza gas struts: what’s fitted and how to look after them

Technical sources confirm gas struts are relevant to some, but not all, 2005 Subaru Impreza variants. The Subaru Impreza 2002–2007 Workshop Manual (GD/GG) Body section lists gas‑pressurised “rear gate stays” on the wagon/hatch (GG), while the Hood section specifies a simple bonnet support rod, not struts. The sedan’s boot lid is counterbalanced by torsion bars rather than gas struts. Major aftermarket application catalogues for lift supports also list rear hatch struts for the 2005 Impreza wagon only. So, gas struts apply to the wagon’s rear hatch, they’re not used on the sedan’s boot or the bonnet across the range.

On the 2005 Subaru Impreza wagon, gas struts do the heavy lifting for the rear hatch. Charged with nitrogen and a dash of oil, they counterbalance the hatch, making it easy to open and steady to hold at full height. That’s not just convenient at the shops, it’s a safety win too, keeping the hatch from dropping on a windy day.

Routine servicing should include a quick check of the rear hatch struts. Signs they’re on the way out include a hatch that drops or sits lower than usual, slow or uneven lifting, the need to “help” it up, chattering in cold weather, or a light oil film around the seal. If any of these show up, it’s time to replace them—ideally as a pair—to keep lift and hold balanced left‑to‑right.

Replacement is straightforward but treat them with respect—they’re high‑pressure components. Support the hatch securely (a second person or a prop is gold), then pop the retaining clips, swap the struts, and click them onto the ball studs. Keep the cylinder up/rod down orientation so the internal seal stays lubricated. Don’t clamp the rod with pliers, don’t try to “re‑gas” an old unit, and avoid forcing the hatch closed against resistance.

To help them last, avoid using the struts as handles, keep the hatch hinges and latch clean and lightly lubricated so the struts aren’t fighting friction, and be mindful that cold mornings will always make them feel weaker. A quick inspection at every service interval is all most owners will need, when they’re tired, fresh struts bring back that easy, one‑handed lift and solid hold that makes daily use a breeze.

• Typical service check: inspect function every 10,000–15,000 km or at scheduled services
• Best practice: replace in pairs for balanced operation
• Safety: always support the hatch during replacement

FAQs

Do all 2005 Subaru Impreza models have gas struts?
No. The wagon/hatch (GG) uses gas struts on the rear hatch. The sedan’s boot uses torsion bars, and all variants use a prop rod for the bonnet. If it’s a wagon, gas struts apply, if it’s a sedan, they don’t.

How can someone tell the hatch struts need replacing?
Common clues are a hatch that won’t stay up, needs help to lift, sags lower than normal, or feels worse in cold weather. A light oil film at the rod seal is another giveaway. If one side is weak, replace both for even support.

Should gas struts be replaced in pairs?
Yes. Replacing in pairs keeps the lift and hold balanced and avoids overloading an older mate strut. It also restores the original opening speed and holding force.