Parts for your 2020 Mitsubishi Outlander-Ignition coils

2020 Mitsubishi Outlander ignition coils: what they do and when to replace them

Based on technical references including the Mitsubishi Motors Outlander (ZL/ZK) workshop manual for 2019–2021, the Mitsubishi ASA parts catalogue, and major ignition component catalogues (NGK, Denso, Delphi), the 2020 Mitsubishi Outlander uses coil-on-plug ignition coils on its petrol engines. That covers the 2.4L four-cylinder, the 3.0L V6 in some trims, and the PHEV’s 2.0L Atkinson-cycle petrol engine. Each cylinder has its own coil mounted directly on the spark plug, so ignition coils are absolutely relevant to this model year.

Ignition coils take the 12-volt battery feed and step it up to the high voltage needed to fire the spark plugs. On the 2020 Outlander they’re designed for clean, efficient combustion and quick starts, while minimising misfires and fuel wastage. A crook coil can show up as a rough idle, sluggish acceleration, higher fuel use, or the check engine light with a cylinder misfire code.

There’s no fixed replacement interval for coils, they’re generally replaced on condition. Most owners will first encounter them when changing spark plugs. That’s the perfect time to inspect each coil boot for cracks, carbon tracking and oil intrusion from a leaking rocker cover gasket. If a boot is perished, replace the boot or the complete coil. When refitting, keep the plug wells clean, seat the coil fully on the plug, and tighten the hold-down fasteners to the specification in the service manual—don’t overtighten, the threads are easy to damage.

As the Outlander range varies by market, the coil count differs: four coils on the 2.4L and PHEV, six on the V6. Sticking with quality OE or well-known aftermarket brands keeps the engine happy and avoids nuisance misfires. If chasing a misfire, swap the suspect coil to another cylinder to see if the fault follows—handy for narrowing it down before buying parts.

• Typical signs it’s time: rough running under load, harder starts when cold, flashing MIL under acceleration, or fuel economy dropping off.
• Best practice at service time: replace spark plugs as per the logbook, inspect coil boots, use dielectric grease sparingly on the inside of the boot, and keep water and solvents out of the plug tubes.
• If one coil fails on a higher‑kilometre Outlander, consider replacing the full set to keep performance consistent.

Look after the coils and plugs together and the Outlander’s petrol engine—whether standard or PHEV—will run smoothly for many kilometres across Aussie and Kiwi roads.

Are ignition coils the same across petrol and PHEV Outlanders?

They’re all coil-on-plug designs, but part numbers and calibration differ by engine. The 2.4L, 3.0L V6 and the PHEV’s 2.0L unit each use coils matched to their specific ignition system. When ordering, match by VIN or engine code to avoid fitment dramas.

How long do ignition coils typically last on a 2020 Outlander?

It’s common for coils to last well past 150,000 km, but heat, oil contamination, and worn plugs can shorten their life. Many owners never touch them until a misfire shows up. Pairing fresh plugs with healthy coils helps them go the distance.

Is it okay to drive with a misfiring coil?

It will usually run, but it’s not a good idea. A persistent misfire can overheat the catalytic converter and waste fuel. If the MIL is flashing or it runs very rough, ease off and get it checked sooner rather than later.