Parts for your 2024 Mitsubishi Eclipse cross-Exhaust gasket

2024 Mitsubishi Eclipse Cross exhaust gasket — what it does and when to replace it

Yes, the 2024 Mitsubishi Eclipse Cross uses exhaust gaskets. Technical sources including the Mitsubishi Motors Eclipse Cross Workshop Manual (GK/GL series, Group 15: Exhaust System and Group 11: Engine Mechanical) and the Mitsubishi ASA/CAPS electronic parts catalogue for GK/GL and PHEV variants identify multiple sealing gaskets in the exhaust stream. These include the cylinder head–to–exhaust manifold gasket, turbocharger outlet/downpipe gasket on the 1.5L turbo petrol, front pipe “donut” or ring gasket with spring bolts, and rear flange gaskets further down the system. The Eclipse Cross PHEV’s 2.4L petrol engine uses similar manifold and flange gaskets (no turbo gasket on PHEV).

In day-to-day terms, an exhaust gasket keeps hot gases sealed inside the exhaust, so there’s no noisy leak, fumes in the cabin, or false oxygen-sensor readings. On the 1.5T, a tight seal upstream of the turbo also preserves boost response and keeps the ECU happy. These gaskets are usually multi-layer steel or graphite/metal crush rings designed to cope with heat cycles and movement.

They’re not a scheduled replacement item, but they do wear. A gasket is typically replaced when that joint has been disturbed (for example, during turbo, manifold, or muffler work) or when symptoms show up. Single-use crush rings and many MLS gaskets should be renewed every time they’re separated, as per the workshop manual.

• Common signs of a leak: ticking or “puffing” on cold start, soot marks around a flange, a whiff of exhaust near the front of the car, sluggish boost or a whistle on the 1.5T, and sometimes a check engine light from skewed O2 readings.
• Good service habits: inspect flanges, spring bolts and hangers at each service