Parts for your 2008 Toyota Bb-Struts

2008 Toyota bB Struts: What They Do and How to Look After Them

Yes, the 2008 Toyota bB runs front MacPherson struts. That’s confirmed in Toyota’s bB (QNC20/21/25) Repair Manual and New Car Features documentation for the second‑gen model, which specify a MacPherson strut front end with a torsion‑beam rear (separate shocks at the back on 2WD). The same setup is echoed in the Daihatsu Materia/Coo and Subaru Dex workshop literature, which share the platform. So struts are absolutely relevant on this model.

On the bB, the front struts do double duty: they support the car’s weight and control wheel movement. Each strut houses a shock absorber inside a structural tube with a coil spring wrapped around it, so they’re crucial for ride comfort, steering feel, and keeping the tyres planted. When they’re healthy, the bB tracks straight, brakes confidently, and soaks up bumps without fuss.

What happens as they wear? Expect extra body bounce, a dull clunk over potholes, vague steering, longer stopping distances due to weight transfer, and uneven tyre wear on the fronts. You might spot oil misting on the strut body or feel the car “tramlining” on coarse chip roads. Left too long, worn struts can chew through tyres and bushings and make emergency manoeuvres a bit hair‑raising.

Good servicing habits keep the bB feeling tidy:

• Have the front struts, mounts, and dust boots inspected every 20,000 km or annually, especially on rough Kiwi and Aussie roads.
• Typical replacement timing is 80,000–120,000 km, sooner if there’s leakage, harsh topping/bottoming, or the bounce test fails.
• Always replace struts in pairs and fit new upper mounts and bearings to avoid noises and notchy steering.
• After any strut work, book a proper four‑wheel alignment to dial in camber and toe and save your tyres.
• If lowering or lifting, choose matched springs and dampers and keep an eye on bump‑stop and travel to protect the struts.

DIYers should use a quality spring compressor and follow torque specs carefully, the top nut and knuckle bolts matter for safety. If in doubt, a trusted workshop can road test, measure ride height, and advise whether fresh struts or just mounts and boots will restore the bB’s easygoing, city‑friendly ride.

Technical sources referenced (no links provided): Toyota bB (QNC20/21/25) Repair Manual, Toyota New Car Features for bB (second generation), Daihatsu Materia/Coo Workshop Manual, Subaru Dex Service Information, Toyota Electronic Parts Catalogue entries for front suspension components.

Popular questions about 2008 Toyota bB struts

Does the 2008 Toyota bB have struts or shocks?

The 2008 bB uses MacPherson struts at the front and separate shock absorbers at the rear on 2WD models. Some 4WD variants use a different rear layout, but the front remains strut‑type across the range.

How often should the front struts be replaced?

Inspection every 20,000 km is smart, with many bB owners seeing replacement around 80,000–120,000 km depending on road conditions. Replace sooner if there’s oil leakage, knocking, or uneven tyre wear.

Do I need an alignment after changing front struts?

Yes. Strut removal can alter camber and toe, so a proper alignment protects tyre life and restores straight‑line stability and steering feel.