Parts for your 2017 Subaru Legacy-Coil springs

2017 Subaru Legacy (Liberty) Coil Springs — What They Do and When to Replace

Technical sources confirm coil springs are fitted to the 2017 Subaru Legacy (Liberty). The Subaru Factory Service Manual for the 2015–2019 Legacy/Outback (BN/BS chassis, Suspension section), the 2017 Owner’s Manual specifications, and general repair references such as the Haynes Subaru Legacy & Outback 2010–2019 manual all note a MacPherson strut with a coil spring up front and a double-wishbone rear with a separate shock and coil spring. So yes—coil springs are absolutely relevant on this model.

On the 2017 Legacy, the coil springs carry the car’s weight, set ride height, and work with the struts/shocks to soak up bumps. They help keep the tyres planted for grip, braking stability, and that balanced feel Subaru owners expect. Correct spring rate is key for the Symmetrical AWD system’s predictability, whether it’s a 2.5i or 3.6R.

As part of routine servicing, it’s smart to inspect them every 10,000–15,000 km. Look for chipped coating, rust (especially at the lower seat), cracked coils, or sagging that leaves one corner sitting lower. Listen for clunks over speed humps and watch for wandering steering or uneven tyre wear. Any of these can point to a tired spring or related hardware like the strut top mount, insulators, or bump stops.

If replacement’s on the cards, do both sides on the same axle to keep ride height and handling even. Match springs to the exact trim and load spec (touring, towing, or heavy-duty options where applicable). Many owners replace the strut mount, dust boot, and bump stop while they’re in there, and they’ll test the shock absorber at the same time. Always torque suspension bolts at normal ride height and book a wheel alignment after the job—ride height changes will nudge camber and toe. Spring compressors can be dangerous, if you’re not fully set up, let a pro handle it.

• Common signs: uneven ride height, knocking over bumps, floaty or bouncy ride, steering pull, accelerated inner/outer tyre wear.
• Good practice: clean and protect seats/isolators, avoid reusing corroded hardware, and check rear subframe bushings during underbody inspections.

Popular questions about 2017 Subaru Legacy (Liberty) coil springs

Do coil springs need to be replaced in pairs?
Yes. Replacing both springs on the same axle keeps the ride height, corner balance, and braking stability consistent. Mixing old and new can leave the car leaning, which affects alignment and tyre wear.

Will new coil springs change alignment?
They can. Any change in ride height shifts camber and toe, so a four-wheel alignment after spring replacement is recommended to protect your tyres and keep the steering true.

How long do the factory coil springs last?
There’s no fixed expiry, but many last well past 150,000 km. Coastal driving, gravel roads, and heavy loads can accelerate corrosion or fatigue. Regular inspections during service help catch issues early.