Parts for your 2018 Mitsubishi Asx-Strut mounts

2018 Mitsubishi ASX strut mounts

Based on Mitsubishi Motors service information for the RVR/ASX platform (GA-series), the Mitsubishi ASA electronic parts catalogue, and major aftermarket fitment guides (KYB and Monroe), the 2018 ASX uses a MacPherson strut front suspension with dedicated strut mounts and integrated thrust bearings. The rear is a separate shock-and-spring arrangement, so there are no rear strut mounts on this model.

On the 2018 ASX, front strut mounts do a couple of big jobs. They’re the cushioned interface between the strut and the body shell, soaking up vibration and road harshness so the cabin stays quiet. They also carry vehicle weight at the top of the strut and, thanks to the built-in bearing, let the strut rotate smoothly as the wheels steer. When the mounts and bearings are healthy, the steering feels light and consistent, the front end tracks straight, and tyre wear stays even.

There isn’t a fixed replacement interval for strut mounts, but on Aussie and Kiwi roads—with heat, corrugations, and the odd gravel shortcut—inspection every 40,000–60,000 km is smart. Look for perished rubber, cracked insulators, or play in the bearing. Owners might notice tell-tales like a clunk over speed humps, a creak at low-speed turns, or a notchy feel on centre. Uneven front tyre wear or vague steering after bumps can also point to tired mounts.

• Common symptoms: front-end knock or creak, steering effort that sticks then frees, tramlining or poor return-to-centre, visible rubber cracking.
• Good practice when replacing: do both fronts together, fit new bearings if they’re separate, check strut boots and bump stops, inspect sway bar links and top nuts.

Replacement is a workshop job because the front coils must be safely compressed to remove the top mount. A technician will torque all fixings to Mitsubishi specs and, once it’s back on the ground, carry out a wheel alignment—camber and toe can shift any time the strut is disturbed. Quality parts matter here: a decent mount and bearing will keep the ASX quiet and the steering sweet for years. After fitment, it’s normal to recheck fasteners at the next service and keep an eye on tyre wear patterns.

Fresh strut mounts bring back that tidy, controlled front end the ASX is known for, cutting cabin noise and sharpening steering feel on city streets and on those long State Highway or country-road runs.

How long do front strut mounts last on a 2018 ASX?

Service life varies with use and environment, but many ASX mounts last 80,000–150,000 km. Lots of stop–start driving, potholes, corrugations, and heat will shorten that. Regular inspections catch cracking rubber or rough bearings before they get noisy.

Do you need a wheel alignment after replacing ASX strut mounts?

Yes. Any time a front strut is removed, camber and toe can shift, so a post-repair alignment is the go. It protects tyres from premature wear and restores straight-line stability and steering feel.

Can worn strut mounts cause knocking and heavy steering?

They can. A fatigued mount can clunk over bumps, and a worn bearing can feel notchy or heavy as you turn the wheel. If the ASX starts doing either, have the mounts and bearings checked along with the top nuts and sway bar links.