Parts for your 2022 Mitsubishi Asx-Exhaust gasket

2022 Mitsubishi ASX exhaust gasket — what it is, why it matters, and when to replace

Technical references confirm the 2022 Mitsubishi ASX does use exhaust gaskets. The Mitsubishi Motors Workshop Manual for ASX/RVR/Outlander Sport (Group 15: Exhaust) specifies gasket replacement when disturbing the exhaust manifold and flange joints, and the Mitsubishi ASA/EPC parts catalogue lists multiple exhaust gaskets for the GA-series ASX (manifold-to-head and flange/crush ring gaskets). Major aftermarket catalogues in Australia and New Zealand (including Permaseal and other OE-equivalent suppliers) also range dedicated exhaust gaskets for 2010–2022 ASX models. So yes—exhaust gaskets are relevant and fitted on the 2022 ASX.

On the 2022 Mitsubishi ASX, the exhaust gasket’s job is simple but critical: it seals the joins where the exhaust manifold meets the cylinder head and where sections of the exhaust bolt together downstream. These gaskets—usually multi-layer steel at the manifold and a metal “donut” or flat ring at flange joints—keep hot gases inside the system so the car stays quiet, clean, and runs the way it should.

When a gasket starts to leak, the driver might notice a ticking or puffing noise on cold start, a bit of soot around a joint, or an exhaust smell. Because the ASX relies on oxygen sensors and the catalytic converter sitting close to the engine, any leak upstream can throw off sensor readings, nudge fuel trims out of whack, and even light the check engine lamp. Left too long, it can pit mating surfaces and make later repairs pricier.

During regular servicing, it’s smart to have the exhaust joints visually checked. If any section is removed—say, to access other components—new gaskets should go in as a matter of course. The ASX uses spring-loaded hardware in places to keep tension on crush gaskets, that means no sealant is needed unless the factory procedure calls for it. Clean mating faces, correct orientation of the gasket, and tightening fasteners to the workshop manual specs are the keys to a first-time seal.

• Common signs of a blown exhaust gasket:
  • Ticking or chuffing noise on start-up that quietens as it warms
  • Sooty marks or a faint exhaust odour near a joint
  • Slight loss of power, worse fuel economy, or a warning light

• Service tips for the 2022 ASX:
  • Always fit new gaskets when disturbing the manifold or flanges
  • Use new spring bolts/nuts where specified and torque to factory spec
  • Avoid sealants unless explicitly specified by the manual
  • After a heat cycle, listen for any faint leak and recheck fasteners if required

Done right, a fresh exhaust gasket restores that quiet, tight seal the ASX left the factory with—and helps keep emissions gear happy for the long haul.

Popular questions about the 2022 Mitsubishi ASX exhaust gasket

Does the 2022 ASX have an exhaust manifold gasket?
Yes. The factory setup includes a multi-layer steel gasket between the cylinder head and the exhaust manifold/catalyst assembly, plus additional sealing rings or flat gaskets at flange joints further down the system. These are service items that should be replaced if the joint is undone or if a leak is detected.

How often should the exhaust gasket be replaced on a 2022 ASX?
There’s no fixed interval. They’re replaced on condition—whenever a section is removed or a leak shows up. During routine servicing, a quick check for noise, odour, soot marks, or loose hardware is worthwhile. If a joint is disturbed, plan on new gaskets as cheap insurance.

Is it safe to drive a 2022 ASX with a leaking exhaust gasket?
Short trips may be possible, but it’s not ideal. A leak can let fumes into the cabin, increase noise, and upset oxygen sensor readings, which can hurt fuel economy and trigger warning lights. It’s best to have it repaired promptly to protect both occupants and engine hardware.