Parts for your 2022 Mitsubishi Asx-Exhaust mount

2022 Mitsubishi ASX Exhaust Mounts — Purpose, Care and Replacement

Based on Mitsubishi Motors’ Service Manual (Group 15 – Exhaust, ASX/RVR/Outlander Sport) and the Mitsubishi ASA/CAPS parts catalogue for GA2W/GA3W models, the 2022 Mitsubishi ASX is fitted with rubber exhaust mounting insulators (commonly called exhaust mounts or hangers). These mounts support and isolate the exhaust system at the centre pipe and rear muffler positions.

On the 2022 ASX, exhaust mounts are the quiet achievers that keep the exhaust sitting correctly under the car, absorbing engine and road vibration so rattles don’t creep into the cabin. They also protect welds, flanges and the catalytic converter from stress by letting the system move a little as it heats, cools and flexes. When the rubber perishes or the brackets deform, the exhaust can sag, knock on the body, or place load on joints that were never meant to carry it.

Good workshop practice (per OEM service guidance) is to inspect the exhaust mounts at every scheduled service or anytime the vehicle has had a knock underneath. In Aussie and Kiwi conditions — coastal air, heat, and the odd gravel road — the rubber can harden or crack over time. Expect them to last years, but if the car sees rough roads or towing, they can go earlier.

When is it time to replace? Keep an eye (and ear) out for:

• Rattles or thumps from the rear on start-up, over bumps, or at idle.
• A visibly low or skewed tailpipe, or the muffler sitting off-centre.
• Exhaust touching a heat shield, bumper, or crossmember.
• Perished, cracked, oil-soaked, or stretched rubber insulators.

Replacement is straightforward: support the exhaust so it doesn’t drop, unhook the old rubber insulators, and fit new ones with a dab of silicone spray to ease them on. It’s smart to replace mounts in pairs or across the system if they’re the same age. Reuse the original brackets if they’re straight and rust-free, otherwise, swap them too. Aftermarket polyurethane mounts can firm things up for sportier setups, but OEM-style rubber insulators usually offer the best comfort for daily driving.

During fitment, check heat shields, hanger brackets, and clamp conditions, a tired mount can mask other issues. Always work on a cool exhaust, and refer to the factory manual for any fastener torque specs. It’s a low-cost job that can save bigger exhaust repairs and keep the ASX feeling tight and quiet.

Popular questions about 2022 Mitsubishi ASX exhaust mounts

How many exhaust mounts does a 2022 ASX have?
Most 2022 ASX variants use three to four mounts: typically one near the centre pipe/resonator and two around the rear muffler. Exact count can vary slightly by trim and exhaust layout.

Is it okay to drive with a broken exhaust mount?
It’ll usually still drive, but it’s not a great idea. A failed mount can let the exhaust bang on the body, stress flanges and flex joints, and potentially lead to damage or excess noise that could trouble a WOF (NZ) or roadworthy (AU). Get it checked promptly.

Should I choose OEM or aftermarket polyurethane mounts?
OEM-style rubber insulators are ideal for comfort and NVH. Polyurethane options offer extra support for heavier or aftermarket exhausts but may transmit a bit more vibration. Pick based on how the ASX is used and the exhaust setup.