Parts for your 2023 Mitsubishi Asx-Exhaust mount

2023 Mitsubishi ASX exhaust-mount: what it does and when to replace it

Based on technical references including the Mitsubishi Motors ASX/RVR/Outlander Sport workshop manual (exhaust system section for GA/GS platform), the Mitsubishi ASA electronic parts catalogue, and common fitment databases used in AU/NZ trade (e.g., TecDoc listings for 2020–2023 ASX), the 2023 Mitsubishi ASX does use exhaust mounts (rubber isolator hangers). These mounts support the exhaust from the front pipe through the centre section to the rear muffler.

On the 2023 ASX, the exhaust-mount’s job is simple but crucial: hold the exhaust in the right place while soaking up vibration. Those rubber hangers stop the pipework and muffler from knocking the body, help manage heat clearances, and tame the buzz you’d otherwise feel through the cabin. They’re small, inexpensive bits that protect bigger, pricier parts from stress and metal-on-metal contact.

Like any rubber component that lives under the car, exhaust mounts cop heat, road grime, and the occasional splash of oil. Over time they can harden, crack, stretch, or tear. A quick look during routine servicing keeps things tidy and quiet.

• Tell-tale signs it’s time to swap them: exhaust rattles on start-up, thuds over bumps, visible sagging of the muffler, or the pipe kissing a heat shield or crossmember. Extra vibration in the cabin is another giveaway.
• Servicing tips for owners and workshops:
  • Inspect mounts every 12 months or 20,000 km, and after any off-road/corrugated-road trips.
  • Replace any cracked, oil-soaked, or stretched hangers. If one’s gone, check the rest, doing them in pairs keeps alignment even.
  • Support the exhaust before removal. Work only on a cold system. A spritz of silicone spray helps slide the hanger off the pegs—avoid petroleum grease on rubber.
  • Stick with quality OEM-equivalent rubber durometers if you value comfort, firmer polyurethane can sharpen support but may add a hint more NVH.
  • After refit, confirm clearances to the subframe, bumper, and heat shields, then listen for knocks on a short test drive.

Kept in good nick, a fresh set of exhaust mounts helps the ASX feel tighter and quieter, protects the catalytic converter and muffler welds from undue stress, and keeps the tailpipe sitting exactly where it should.

How many exhaust mounts does a 2023 Mitsubishi ASX have?

Most 2.0L FWD 2023 ASX variants use about four mounts: one up front near the pipe, one mid-section, and two at the rear muffler. Some market trims may differ slightly, but the idea’s the same—spread support along the system.

What causes ASX exhaust mounts to fail?

Heat cycling, age, oil contamination, and rough roads can harden or tear the rubber. Once they stretch or crack, the exhaust can sag and start knocking, which is your cue to replace them.

Can the mounts be replaced at home?

Yes, if the car is safely supported. With basic tools and silicone spray, it’s a straightforward 30–60 minute driveway job. If any studs or brackets are bent or corroded, it’s worth getting a workshop to sort alignment and clearances.