Parts for your 2017 Subaru Impreza-Gas struts

2017 Subaru Impreza gas struts — what they do and when to replace them

Yes, gas struts are used on the 2017 Subaru Impreza — specifically on the 5‑door hatchback’s rear liftgate. Technical sources including the 2017MY Subaru Impreza Owner’s Manual (Rear Gate section), the Subaru Service Manual (Body: Rear Gate/Back Door), and Subaru’s genuine parts catalog (FAST) all list a gas‑charged “rear gate stay” for the hatch. The bonnet uses a manual prop rod (no gas struts), and the sedan’s boot lid is sprung with torsion bars rather than gas struts. So, gas struts are relevant for the hatch’s rear gate, but not for the bonnet or the sedan boot.

On the hatch, gas struts do the heavy lifting — literally. They counterbalance the rear gate so it lifts smoothly and stays up without drama, even when the weather turns. When they’re healthy, opening the rear gate is effortless and controlled, when they’re tired, the gate can feel heavy, creep down, or drop unexpectedly.

There’s no fixed service interval for gas struts, but they’re a wear item. Expect 5–10 years of typical life, shorter in hot climates or if the car regularly carries bikes, prams, or kit that has the gate open for long periods. Replacement is generally on condition. Common signs they’re due:

• The rear gate won’t stay up, especially in cold weather or wind.
• Slower, uneven lifting or a “dead spot” mid‑travel.
• Oily residue on the strut body or a faint hiss after extension.
• One side doing more work than the other (gate twists slightly).

Good workshop practice is to replace gas struts in pairs so lift and damping stay balanced. Support the gate safely with a prop or a second person before starting. Most Impreza struts use simple ball‑socket clips, pop the metal clip, swap the unit, and ensure the clip re-seats fully. Follow the Subaru Service Manual for any torque specs on brackets and check for cracked mounts or worn ball studs while you’re there.

For longevity: keep the chrome shaft clean, don’t spray petroleum grease on it (it attracts grit and can damage seals), and avoid forcing the gate closed if cargo is fouling the latch. If the car lives outdoors, expect a little earlier replacement — heat and UV accelerate seal wear.

If you’ve got the 2017 Impreza sedan, you won’t find gas struts on the boot, torsion bars handle the lift, and issues there are more about adjustment than replacement struts. For all body styles, the bonnet is held by a prop rod, not gas struts.

Popular questions about 2017 Subaru Impreza gas struts

Do all 2017 Imprezas have gas struts?
Not all. The 5‑door hatch has gas‑charged rear gate stays. The sedan’s boot uses torsion bars instead, and the bonnet on both body styles is supported by a manual prop rod. Subaru’s service and parts documentation for 2017MY confirms this setup.

Can the factory gas struts be re‑gassed or should they be replaced?
Most OEM Impreza rear gate struts are sealed units, re‑gassing isn’t typically supported. Replacement with quality, vehicle‑specific struts is the straightforward and reliable fix. Replace both sides together to keep the lift even.

How long do rear hatch gas struts usually last on a 2017 Impreza?
Commonly 5–10 years, depending on climate, usage, and exposure. Frequent use, high heat, or salty coastal air can shorten life. If the hatch won’t hold itself up or sags in cold weather, they’re due.