Parts for your 2021 Subaru Impreza-Strut mounts

Understanding Strut Mounts on the 2021 Subaru Impreza

When looking at the suspension system of the 2021 Subaru Impreza, it's important to understand the role of various components that contribute to ride comfort and vehicle stability. One such component often discussed in relation to strut-type suspension systems is the strut mount. So, are strut mounts fitted to the 2021 Subaru Impreza, and how relevant are they when it comes to servicing or maintenance?

The 2021 Subaru Impreza employs a MacPherson strut front suspension setup and a rear multi-link suspension system. The MacPherson strut is a popular type of front suspension design that combines the shock absorber and coil spring into a single unit, providing a compact and cost-effective solution. With this setup, the top of the strut assembly connects to the vehicle's body through a strut mount.

Strut mounts are definitely fitted on the 2021 Subaru Impreza as part of its front suspension system. The rear suspension, however, utilises a multi-link design, which generally does not use a strut or strut mounts, relying instead on separate shocks and springs attached via different mounting points. Because the 2021 Impreza's front suspension is MacPherson strut-based, the use of strut mounts is essential, making them a relevant and important component of the vehicle's suspension.

Now, let's dive into what strut mounts actually do, and why they are key to keeping your Impreza driving smoothly.

At its core, the strut mount is the point where the top of the MacPherson strut assembly attaches to the vehicle's chassis or body. But that's not all - it serves a few crucial purposes. First, it acts as a secure mounting point that holds the strut in place, allowing it to absorb shocks from the road efficiently. Second, many strut mounts include a bearing, or a type of rotating mechanism, to allow the strut to pivot smoothly when steering. This helps keep steering response sharp and precise, while preventing excessive wear on suspension and steering components.

On vehicles like the Subaru Impreza, strut mounts essentially perform a dual role: they isolate noise and vibration from the cabin, contributing to a comfortable and quiet ride, and they provide the ability for the front wheels to turn without binding or excessive friction. So, a worn or faulty strut mount can lead to a few unwelcome symptoms, such as clunking noises over bumps, uneven tyre wear, rougher ride quality, and even steering difficulties.

Replacing or maintaining the strut mounts on the 2021 Subaru Impreza is a critical part of ensuring the vehicle remains safe and comfortable to drive. Unlike some wear items that have a clear service interval, strut mounts don't usually require routine replacement unless they show signs of failure. However, they should be inspected when the suspension is serviced, or whenever the struts themselves are being replaced.

Here are a few signs owners might notice if their strut mounts need attention:

• Clunking or knocking noises when driving over bumps or during sharp turns.
• Unusual vibrations felt through the steering wheel or chassis.
• Uneven or accelerated front tyre wear.
• Steering feels less responsive or binding when turning the wheel.

If any of these symptoms appear, it's a good call to have a qualified mechanic inspect the strut mounts along with other suspension components. Early diagnosis can save money down the track, as worn strut mounts can accelerate wear on struts, shocks, and even steering parts.

For replacement, many Subaru specialists prefer replacing the strut mounts at the same time as the front struts, especially when replacing worn struts or upgrading suspension components. This is because once the strut assembly is removed, accessing and changing the strut mounts is far easier and more efficient. Attempting to replace the mounts separately usually requires extra labour and cost.

When servicing the strut mounts on a 2021 Subaru Impreza, technicians will:

1. Remove the front strut assembly carefully from the vehicle.
2. Disassemble the strut to access the strut mount.
3. Check the mount for cracks, bearing wear, or rubber degradation.
4. Replace the mount if necessary with genuine or high-quality aftermarket parts.
5. Reassemble the strut, ensuring all components are correctly torqued.
6. Reinstall the strut assembly and perform a wheel alignment if required.

Keeping an eye on strut mounts forms an essential part of maintaining the smooth, confident handling that the Subaru Impreza is known for. They are a relatively small and often overlooked item, but their impact on drive quality and safety is significant. Regular suspension inspections and addressing any symptoms early can help drivers keep their Impreza performing like new for many years.