Parts for your 2014 Nissan Serena-Spark plugs

2014 Nissan Serena spark plugs — purpose, upkeep and when to change

Yes, spark plugs are relevant and fitted to the 2014 Nissan Serena (C26). The model runs a 2.0‑litre petrol MR‑series engine with coil‑on‑plug ignition, including S‑HYBRID variants, which requires four spark plugs. This is supported by Nissan’s C26 Serena service manual (Engine Mechanical and Engine Control sections), Nissan’s S‑HYBRID technical materials, and major plug catalogues from NGK and DENSO that list long‑life plugs for the MR‑series engine used in the 2014 Serena.

On this Serena, the spark plugs ignite the air‑fuel mix inside each cylinder, delivering a clean burn for reliable starts, smooth idle and decent fuel economy around town. Because the Serena often does school runs and family trips, healthy plugs make a noticeable difference to throttle response with the CVT and help keep fuel use in check.

For servicing, Nissan specifies long‑life iridium/platinum plugs, with typical change intervals around 100,000 km (or about six years), though owners should always follow the market‑specific maintenance schedule in the owner’s handbook or service manual. The Serena’s coil‑on‑plug layout makes inspection straightforward for a technician: remove the engine cover, unplug each coil, and inspect or replace the plugs as a set. A factory gap around 1.1 mm is common for the MR‑series, and most iridium plugs arrive pre‑gapped. Modern plated threads generally don’t need anti‑seize