Parts for your 2017 Toyota Avensis-Strut mounts

2017 Toyota Avensis strut mounts — what they do and when to replace them

Referencing Toyota Service Information for the Avensis T27 series (which specifies a MacPherson strut front suspension), the Toyota Electronic Parts Catalogue listing a Front Suspension Support Sub-Assembly (strut top mount) for 2015–2018 Avensis models, and independent workshop data (e.g., Haynes/Autodata covering T27), it’s clear the 2017 Toyota Avensis does use strut mounts at the front. The rear runs a multi‑link/double‑wishbone arrangement with separate shocks, so there are no rear “strut” mounts — only shock mounts. With that confirmed, here’s what owners should know about the front strut mounts on their Avensis.

The front strut mount is the top support for the MacPherson strut. It bolts to the strut tower and does two big jobs: it isolates vibration and road noise with a rubber insulator, and it carries vehicle weight and steering loads. Most mounts also house a thrust bearing so the strut can rotate smoothly when the wheel is turned. On the Avensis, healthy mounts keep steering light and precise, reduce harshness over bumps, and help tyres wear evenly.

They’re a wear item. Heat, age, and our typical Aussie and Kiwi roads — think potholes, speed humps, corrugations and gravel — gradually harden or crack the rubber and wear the bearing. Tell‑tale signs include:

• Clunks, knocks or metallic pings over bumps
• Creaking or groaning when turning at low speed
• Uneven tyre wear or slight wandering

As part of routine servicing, a visual and tactile check every 40,000–60,000 km is smart: look for perished rubber, separated bonding, rust staining around the studs, and play when the strut is unloaded. If replacement’s needed, it’s best practice to change mounts in pairs, and include the integral bearing if it’s separate. Always book a wheel alignment afterwards — mounts can subtly shift camber/caster and toe when renewed.

DIYers should know the job requires correct spring compressors and attention to orientation marks. Many fasteners are single‑use, and the centre nut is torqued with the spring compressed, get the specs from reliable data. For most owners, a workshop that specialises in suspension will turn this around quickly and safely. Choosing OE or quality aftermarket mounts pays off in steering feel and longevity. With fresh mounts, the Avensis will feel tighter, quieter and more confidence‑inspiring on the daily commute and the weekend run alike.

Popular questions

Does the 2017 Avensis have rear strut mounts?
No — the 2017 Avensis (T27) uses MacPherson struts at the front only. The rear is a multi‑link/double‑wishbone design with separate shock absorbers, so it uses rear shock mounts rather than strut mounts.

If there’s a knock from the rear, the likely culprits are the shock upper/lower mounts, rear anti‑roll bar links or bushes, not a rear strut mount.

How long do front strut mounts last on a 2017 Avensis?
In typical Australian and New Zealand conditions, many last 80,000–150,000 kilometres, but life varies with road quality, load, and climate. City kerbs, speed humps and rough rural roads can shorten that span.

Inspect them at regular services, especially if there’s new noise, vague steering, or uneven tyre wear. Replacing them before they fail completely keeps steering feel crisp and protects tyres.

Can the mounts be replaced without new struts?
Yes, the front mounts can be replaced on their own. However, it’s sensible to assess the struts and coil springs at the same time. If the struts are worn or leaking, doing both together saves labour and delivers the best result.

Always replace mounts in pairs and finish with a proper wheel alignment to lock in handling and tyre life.