Parts for your 2017 Subaru Impreza-Engine mount

2017 Subaru Impreza Engine Mount — Purpose, Care, and When to Replace

Yes, the 2017 Subaru Impreza absolutely uses engine mounts. Subaru’s factory Service Manual for the 2017MY Impreza (GK/GT) details left and right engine mounts securing the FB20 boxer engine to the front crossmember, plus a pitch-stop mount to control fore–aft movement. The Subaru Parts Catalogue (FAST) lists dedicated LH and RH engine mount assemblies for this model, and independent manuals such as Haynes also cover engine/motor mount replacement on late-model Imprezas. So the engine mount is very much a relevant service item on this vehicle.

In this Impreza, the engine mounts do two main jobs: they hold the engine firmly in place and they isolate vibration so the cabin stays quiet and comfortable. Subaru commonly uses hydraulic (fluid-filled) mounts on late-model cars to tame idle shake and drivetrain shudder, while the pitch-stop mount helps manage movement during hard braking or acceleration.

There’s no fixed replacement interval for engine mounts, they’re changed on condition. That said, many owners see wear somewhere between 120,000–200,000 kilometres, depending on driving style, heat, and age. Typical signs it’s time to act include:

• Rough idle or new vibrations felt through the seats or steering.
• Clunks on take-off, gear changes, or when blipping the throttle.
• Excessive engine rock under the bonnet, or perished/cracked rubber.
• Exhaust or intake contacting under load, causing rattles.

When replacing, it’s smart to do both left and right mounts together, and inspect the pitch-stop and transmission mount at the same time. A workshop will support the engine from below (or with a support bar), swap mounts one side at a time, and torque new self-locking fasteners to Subaru specs. Using genuine or OE-equivalent hydraulic mounts keeps NVH at factory levels, stiffer performance mounts reduce movement but can add cabin buzz.

As part of regular servicing, a quick visual check goes a long way: look for collapsed rubber, fluid weeping from hydraulic mounts, and loose or shiny contact points around the crossmember. If the car feels harsher than it used to, or there’s a thunk on shift, it’s worth getting a technician to road test and confirm. Catching a tired mount early prevents strain on exhaust flex joints, hoses, and CVT/manual driveline components.

Popular questions about 2017 Subaru Impreza engine mounts

How long do the engine mounts typically last?
Many last well past 120,000 kilometres, but age, heat, and stop–start driving can shorten life. There’s no set interval—replace on condition. If vibration increases or there are clunks on take-off, have them checked.

What are common symptoms of a failing mount?
Increased idle vibration, a knock when shifting or accelerating, visible engine movement under the bonnet, or rubber that looks cracked or collapsed. Hydraulic mounts may also seep fluid when they fail.

Is it safe to keep driving with a worn engine mount?
Short-term, the car may be drivable, but continued use can stress the exhaust, hoses, and driveline, and the vibration gets old fast. Best to book it in and sort it before it becomes a bigger repair.