Parts for your 2022 Mazda Cx-5-Exhaust gasket

2022 Mazda CX-5 exhaust gasket — what it does, and when to replace it

Yes, the 2022 Mazda CX-5 uses exhaust gaskets. Technical sources including the Mazda Global Service Support (MGSS) Workshop Manual for KF-series CX-5 and the Mazda Electronic Parts Catalogue (EPC) show multiple sealing points that rely on gaskets: a multi-layer steel gasket between the cylinder head and the manifold/catalyst on the 2.5L Skyactiv-G, a crush-type ring or flat gasket at the manifold/front pipe joint, and additional gaskets at the turbocharger and downpipe on the 2.5T models. The workshop procedures explicitly note “replace gasket with new” during reassembly at these joints.

On this CX-5, exhaust gaskets keep hot gases sealed as they leave the engine, protecting against leaks that cause ticking noises, fumes under the bonnet, and incorrect oxygen sensor readings. A proper seal helps the engine computer trim fuel correctly, keeps emissions in check, and preserves the exhaust note. On turbo variants, sound sealing also supports correct boost response.

There’s no fixed kilometre-based interval just for gaskets, but they are treated as single-use items any time the joint is undone—like during manifold, catalytic converter, turbo, or front pipe work. As part of normal servicing, a visual check is smart: look for black sooty marks at flanges, spring bolts that have lost tension, or any signs of blowing.

• Common signs of a leaking exhaust gasket:
  • Ticking or puffy “chuff” on cold start that softens warm
  • Exhaust smell around the engine bay or underbody
  • Soot tracks at a flange, slight loss of power, or worsened fuel economy
  • On 2.5T, abnormal turbo whistle and potential boost or O2 sensor faults

Replacement tips for the CX-5 crew: use OEM-quality gaskets, follow MGSS torque specs and sequences, clean mating faces (no sealant), and renew spring bolts, studs, or copper nuts if corroded. Aftermarket “universal” donuts can be hit-and-miss—stick with parts matched to the KF exhaust. If a leak is present near the manifold or turbo, don’t delay