Parts for your 2017 Subaru Impreza-Coil springs

2017 Subaru Impreza coil springs — what they do and when to replace

Coil springs absolutely are used on the 2017 Subaru Impreza. Technical documentation confirms it: the Subaru Factory Service Manual (FSM) for the 2017 Impreza (GK/GT) lists a MacPherson strut with a coil spring up front and an independent rear suspension with coil springs. Subaru’s platform and specification materials for the Subaru Global Platform also describe this layout. So, yes — coil springs are relevant and fitted to this model.

On the Impreza, coil springs support the vehicle’s weight, hold the correct ride height, and help keep the tyres planted over bumps and through corners. They work with the struts/shocks, which control the spring’s motion. If the spring is the muscle, the damper is the coach — together they smooth out rough roads, stabilise the body, and keep steering feel predictable.

As part of regular servicing, it’s smart to have the springs and struts visually checked for damage, corrosion and leaks. A quick look every service or roughly each 20,000 km is a good rule of thumb, especially if the car does gravel, coastal, or heavy-load work. Springs don’t have a fixed replacement interval, but they do fatigue over time.

• Typical signs a coil spring needs attention:
  • Sagging or uneven ride height side-to-side
  • Clunks over bumps, or a sharp “ping” when turning
  • Rust flaking, cracked paint, or a broken coil end (pigtail)
  • Excessive bounce or poor stability even with good tyres
• Good practice during replacement:
  • Replace springs in axle pairs (both fronts or both rears)
  • Use a proper spring compressor, this job can be hazardous without the right gear
  • Inspect/renew strut mounts, bearings, isolators, bump stops and dust boots
  • Tighten control arm and strut hardware at normal ride height to protect bushings
  • Book a wheel alignment afterwards, ride height changes alter camber and toe

Choosing OE-grade or quality aftermarket springs keeps the Impreza riding as intended. Avoid cutting springs, and note that lowering or lifting can affect warranty and legal compliance. In Australia and New Zealand, ride-height changes may require certification or sign-off for roadworthiness — best to check local regs before fitting performance springs.

Popular questions about 2017 Subaru Impreza coil springs

How long do the coil springs typically last?
Many owners see well over 150,000 km from original springs, but lifespan depends on climate, loads, and road conditions. Coastal environments and salted roads can speed up corrosion, while carrying heavy gear or towing regularly can fatigue springs earlier. Regular inspections catch issues before they snowball.

Should the struts/shocks be replaced at the same time as the springs?
If the car has high kilometres or there are signs of damping wear (leaks, floaty ride, cupped tyres), it’s sensible to replace struts with the springs. New springs on tired dampers won’t feel great, and you’ll pay duplicate labour later. Many workshops recommend doing mounts and bearings at the same time for a quieter, tighter result.

Is a wheel alignment needed after coil spring replacement?
Yes. Ride height affects camber and toe, so an alignment after spring or strut work is standard practice. It protects tyres, restores steering feel, and ensures the Impreza tracks straight.