Parts for your 2024 Mitsubishi Asx-Ignition leads

2024 Mitsubishi ASX ignition leads — are they used?

Short answer: no, the 2024 Mitsubishi ASX doesn’t use traditional ignition leads. Mitsubishi’s 2.0L MIVEC petrol engine in the ASX runs a coil-on-plug (COP) setup, where each spark plug has its own ignition coil sitting directly on top. This design removes the need for high-tension (HT) ignition leads altogether. Technical references confirming this include the Mitsubishi Motors 2024 ASX Owner’s Manual (spark plug and ignition system descriptions), the factory Workshop Manual for the 4B11-series MIVEC engine (coil-on-plug ignition layout), and Mitsubishi’s ASA electronic parts catalogue for the ASX, which lists individual ignition coil assemblies but no HT lead/cable set.

Ignition leads were common on older distributor or remote-coil systems, carrying high voltage from a coil pack to the spark plugs. By putting the coil directly on each plug, the ASX’s COP system trims voltage losses, cuts down on electromagnetic interference, and simplifies the hardware. That means fewer parts to age, arc or crack—great for reliability and consistent spark energy.

What should owners maintain instead? Focus shifts to spark plugs, ignition coils and the rubber boots/seals. Spark plugs are long-life (iridium) items, typically replaced around the 90,000–100,000 km mark or per the vehicle’s service schedule. Coils aren’t a scheduled replacement, but they can weaken over time. If the ASX shows a rough idle, hesitation, poor fuel economy, or logs misfire codes, a scan and coil-by-coil diagnosis is the go.

• At each service, check for oil or water in the plug tubes, and make sure coil boots are clean and not perished.
• When changing plugs, use the specified plug type and the torque spec from the workshop data. Avoid anti-seize unless the service information allows it, and keep the plug wells clean.
• A light smear of high-temp dielectric grease on the inside of the boot can help sealing and release, but don’t overdo it.
• If a coil fails, replace with quality OEM-equivalent parts. Mixing old and new coils is acceptable, but if multiple coils are weak, replacing the full set can save repeat labour.

Because the ASX doesn’t run ignition leads, there’s nothing to “upgrade” in that department. Keeping good plugs in it, protecting the coils, and sticking to the logbook will keep the ignition side happy for the long haul.

FAQs

Does the 2024 Mitsubishi ASX have ignition leads?
The 2024 ASX uses a coil-on-plug ignition system, so there are no separate ignition leads. This is shown in Mitsubishi’s Owner’s Manual and Workshop Manual for the 2.0L MIVEC engine, and the parts catalogue lists coils only, not HT cable sets.

What should be serviced instead of ignition leads on a 2024 ASX?
Service the spark plugs at the interval in the maintenance schedule and inspect the individual ignition coils and boots for wear, cracking, moisture or oil contamination. Address any misfires promptly with diagnostics.

Can aftermarket ignition leads be fitted to a 2024 ASX?
No. There’s nowhere to fit them because the coils sit directly on the plugs. Any “lead” kits marketed for this model won’t apply to the COP ignition design.