Parts for your 2016 Nissan Pathfinder-Ignition coils

2016 Nissan Pathfinder ignition coils — purpose, reliability and servicing tips

Based on technical sources, ignition coils are absolutely relevant to the 2016 Nissan Pathfinder. The Nissan Factory Service Manual for the R52 Pathfinder (EC: Engine Control – Ignition System) specifies a coil-on-plug setup for the 3.5‑litre VQ35DE petrol V6, with one coil per cylinder. Nissan’s parts catalogue for the same model lists six individual ignition coil assemblies. For the 2016 Pathfinder Hybrid, the QR25DER 2.5‑litre petrol engine also uses individual coils. So yes — this model runs ignition coils, and they’re central to how it starts, idles and pulls under load.

Ignition coils take the 12‑volt battery feed and step it up to tens of thousands of volts, creating a strong spark at each plug right when the engine control unit calls for it. The coil-on-plug design minimises energy loss through old‑school leads, sharpens timing accuracy and helps fuel economy and emissions — all things owners notice as smooth, quiet running and decent range per tank.

While coils aren’t a routine “replace-by-date” service item, they do age with heat and vibration. During major servicing — especially when the iridium spark plugs are due (typically around the 160,000 km mark, per Nissan service guidance) — it’s smart to inspect coil boots for cracking, check for oil in plug tubes from rocker cover seal leaks, and confirm tight, clean electrical connectors. If a misfire code like P0300–P0306 pops up, targeted testing can isolate a weak coil.

• Common signs of a failing coil: rough idle, hesitation under load, hard starts, worse fuel economy, and a flashing or steady check engine light with cylinder‑specific misfire codes.
• Good practice: replace the spark plug on the affected cylinder when fitting a new coil, use a smear of dielectric grease on the boot, and seat the coil squarely before snugging the retaining bolt to the manufacturer’s torque spec.

On higher‑kilometre Pathfinders, some owners choose to replace coils in sets to avoid repeat labour, though a one‑for‑one replacement is fine if the rest test healthy. Keeping water and degreaser away from the coil connectors under the bonnet helps longevity, and scanning for stored misfire counts during regular servicing can catch issues early, before they feel obvious on the road.

Popular questions

How many ignition coils does a 2016 Nissan Pathfinder have?
The 3.5‑litre V6 model uses six individual coil‑on‑plug ignition coils — one per cylinder. The Hybrid variant’s 2.5‑litre petrol engine uses four.

Should ignition coils be replaced in sets or just the failed one?
Either approach works. Replacing the single failed coil is cost‑effective, on high‑kilometre vehicles, doing a full set can prevent repeat visits. Testing the remaining coils and reviewing service history helps choose the best path.

Do worn spark plugs damage coils?
They can. As plug gaps widen over time, coils work harder to jump the gap, which increases heat and stress. Keeping to the plug replacement interval helps protect coil life and keeps the V6 running sweet.