Parts for your 2019 Mitsubishi Asx-Manifold gasket

2019 Mitsubishi ASX manifold gasket — what it does and when to replace it

Yes, a manifold gasket is absolutely used on the 2019 Mitsubishi ASX. Mitsubishi technical literature for the ASX/RVR/Outlander Sport platform (covering the 4B11/4B12 and 4A9-series petrol engines) lists both intake and exhaust manifold gaskets, along with torque sequences for the manifold fasteners. This is documented in Mitsubishi Motors service manuals (engine sections covering Intake and Exhaust) and confirmed in the Mitsubishi ASA electronic parts catalogue and professional repair databases used in workshops.

On this model, the intake manifold gasket seals the junction between the intake manifold and the cylinder head so only metered air enters the engine. The exhaust manifold gasket seals the hot side, keeping exhaust gases in the manifold and through the catalytic converter. If either side leaks, the ASX can run rough, throw fault codes from skewed oxygen sensor readings, make a ticking or hissing noise, or smell of exhaust under the bonnet.

Unlike oil and filters, manifold gaskets aren’t a scheduled replacement item. They’re replaced when a leak shows up, or whenever a manifold is removed for other work. As part of routine servicing on a 2019 ASX, a good technician will visually check around the manifold flanges and listen for cold-start ticks or hisses, especially on higher-kilometre cars or vehicles that see lots of heat cycles (short trips, towing, or hot climates).

Handy pointers for owners and workshops:

• Always use new gaskets when refitting an intake or exhaust manifold