Parts for your 2020 Mazda 3-Shock absorbers

2020 Mazda 3 shock absorbers — what they do and when to replace them

Yes, the 2020 Mazda 3 absolutely uses shock absorbers. Technical sources including Mazda’s BP-series Workshop Manual and official specifications list a MacPherson strut front suspension and a torsion-beam rear axle with separate dampers. The front strut assemblies incorporate the shock absorber within the strut, while the rear uses conventional shock absorbers mounted to the beam. This setup is used across the 2020 Mazda 3 range for a blend of sharp handling, a planted feel, and tidy packaging.

On this model, the shock absorbers control spring movement, keeping the tyres firmly in contact with the road. That means better steering response, shorter stopping distances over bumps, and less body bounce on rippled or corrugated surfaces common around Australia and New Zealand. When the dampers fade or leak, the Mazda 3 can start to feel floaty, crashy over potholes, and less confidence-inspiring through quick direction changes.

Typical signs the 2020 Mazda 3’s shocks or struts need attention include:

• Oil misting or wetness on the damper body
• Excessive bounce after speed humps or dips
• Nose-diving under brakes or rear squat on acceleration
• Uneven or cupped tyre wear
• Clunks from worn mounts or bushings

As a rule of thumb, it’s smart to have them inspected at every scheduled service, and more closely around 80,000–120,000 km, sooner if the car frequently travels on rough roads, carries loads, or tows. Replacement is best done in axle pairs (both fronts or both rears) to keep damping balanced. If front struts are replaced, a wheel alignment is recommended. Good workshops will also check top mounts, bump stops, and dust boots, and torque suspension fasteners at ride height to avoid preloading the bushes.

Owners can stick with Mazda Genuine dampers for OE feel, or choose reputable aftermarket options offering a slightly firmer or more compliant ride depending on preference. Either way, fresh shocks restore grip, comfort, and confidence — the sort of improvement that’s noticeable the first time it hits a patchy back road after servicing.

How long do shock absorbers last on a 2020 Mazda 3?

Many will go 80,000–120,000 km, but lifespan varies with road conditions and driving style. Rough rural roads, frequent speed humps, and heavy loads can shorten their service life. Regular checks at routine services help catch leaks or fade early.

Does the 2020 Mazda 3 have struts or shocks?

It has both: MacPherson struts at the front (the damper is integrated into the strut) and separate conventional shock absorbers at the rear with a torsion-beam axle. That’s straight from Mazda’s BP-series suspension design.

Do you need a wheel alignment after replacing shocks?

Yes if front struts are replaced, because geometry can shift when the strut assembly is disturbed. Rear shock replacement on the torsion beam usually doesn’t change alignment, but it’s still wise to check tyre wear and verify settings.