Perth's roads — from the smooth freeway to the potholed suburban backstreets — put real stress on your car's suspension system. Worn shocks and struts don't just make your ride rougher; they increase braking distances and reduce your ability to steer around hazards.
How Suspension Works
Your car's suspension system serves two purposes: keeping your tyres in contact with the road, and absorbing bumps so the cabin stays stable. The key components are shock absorbers (shocks), struts, springs, control arms, and bushings. When any of these wear out, handling and safety suffer.
Warning Signs of Worn Suspension
- Bouncing after bumps — if your car continues to bounce after hitting a dip, shocks are likely worn
- Nose-diving under braking — the front dips sharply when you brake
- Body roll in corners — excessive lean when turning
- Uneven tyre wear — cupping or scalloping on the tyre tread is a classic sign
- Clunking or knocking sounds — especially over speed humps or rough surfaces
- Vehicle pulling to one side — can indicate a worn strut or bushing on one side
- Vibration through the steering wheel — at highway speeds especially
The Bounce Test
A simple roadside test: push down hard on each corner of your car and release. If the car bounces more than 1–2 times before settling, your shocks are likely worn.
How Long Do Shocks Last?
Most shocks and struts have a service life of around 80,000–100,000 km, though this varies significantly based on road conditions and load. Perth drivers who regularly carry heavy loads or travel on corrugated roads may see shorter lifespans.
Shocks vs Struts: What's the Difference?
Shocks and struts both dampen suspension movement, but struts are structural components that also support the vehicle's weight. Replacing struts is more involved (and expensive) than replacing shocks. Your mechanic can advise which your vehicle uses.
What Does Suspension Replacement Cost in Perth?
Shock absorber replacement in Perth typically costs $150–$400 per corner including parts and labour, depending on the vehicle. Strut replacement runs higher — $300–$700 per corner. Replacing in pairs (both fronts or both rears) is standard practice to maintain balanced handling.
Don't Ignore Suspension Problems
Worn suspension directly affects your ability to stop and steer in an emergency. If you're noticing any of the signs above, have your suspension inspected by a Perth mechanic before the next long drive — especially if you're planning a trip to regional WA where road quality varies significantly.