Parts for your 2014 Nissan Serena-Manifold gasket

2014 Nissan Serena Manifold Gasket — What It Does and When to Replace It

Referencing Nissan’s C26 Serena factory Service Manual (Engine Mechanical section, 2010–2015) and the Nissan FAST electronic parts catalogue for the MR-series engines, the 2014 Nissan Serena is fitted with both intake and exhaust manifold gaskets. So yes—manifold-gasket is absolutely relevant on this model.

On the 2014 Serena, the intake manifold gasket (often a moulded rubber or O-ring style where the plastic intake meets the cylinder head) keeps unmetered air out of the engine, helping maintain smooth idle, proper fuel trims, and decent fuel economy. The exhaust manifold gasket (typically a multi-layer steel gasket) seals hot gases as they leave the head, keeping things quiet, efficient, and safe for sensors and the catalytic converter.

These gaskets aren’t a scheduled service item, but they should be replaced whenever the manifold is removed, or if any tell-tale symptoms pop up. Genuine-equivalent parts and a correct torque sequence make all the difference to long-term sealing. The Serena’s engine bay can run warm in Aussie and Kiwi conditions, so heat cycling can harden old gaskets over time—especially the exhaust side.

• Signs an intake gasket is leaking: rough idle, hissing under the bonnet, lean fault codes, poor fuel economy.
• Signs an exhaust gasket is leaking: ticking on cold start, fumes or a sharp exhaust odour, sooty marks near the flange, higher cabin noise.

When servicing, a quick visual around the manifold flanges, combined with a scan of fuel trims (for intake leaks) or a cold-start listen test (for exhaust ticks), is a smart move. If removal is needed—let the engine cool fully, label hoses and connectors, and clean mating faces without gouging. Avoid RTV unless the manual specifically calls for it. New gaskets should always be installed, studs and copper nuts replaced if they’re corroded, and the manufacturer’s tightening sequence followed. A smoke test is a tidy way to confirm an intake seal