Parts for your 2015 Mitsubishi Asx-Ignition leads

2015 Mitsubishi ASX ignition leads: are they used?

For the 2015 Mitsubishi ASX, traditional ignition leads (high‑tension spark plug wires) aren’t used. Technical references from Mitsubishi’s factory service information for the ASX/RVR/Outlander Sport platform (covering the GA2W/GA3W series) specify that the 2.0L petrol 4B11 MIVEC engine runs a coil‑on‑plug (COP) ignition system with one individual ignition coil mounted directly on each spark plug. The Mitsubishi ASA electronic parts catalogue for these models lists ignition coils and spark plugs, but no ignition cable set, further confirming there are no conventional leads to replace. On diesel variants (1.8 Di‑D 4N13), there are no spark plugs at all—compression ignition is used with glow plugs—so ignition leads are not applicable there either.

What does that mean for owners who are searching for “2015 Mitsubishi ASX ignition leads”? In short, the car doesn’t have them. Instead, it uses four coil packs that sit on top of the plugs under the engine cover. This setup improves spark accuracy, reduces voltage loss, and removes the need for long, failure‑prone HT leads and a distributor.

Servicing focuses on the coils, coil boots, and spark plugs:

• Replace spark plugs at the interval in the ASX service schedule (often long‑life iridium). If unsure, follow the logbook or ask a technician.
• Inspect coil boots for cracks, carbon tracking, oil contamination, or hardening. Replace boots or coils if damaged.
• If there’s a misfire under load, rough idle, or poor fuel economy, test each coil and check plug condition and gap.
• Keep water out of the plug wells, avoid high‑pressure washing around the top of the engine. A light smear of dielectric grease on the inside of each boot can help sealing.

If a parts listing shows “ignition leads” for a 2015 ASX, it’s likely a generic catalogue entry or mislabel. The correct ignition components to order are individual ignition coils and the specified spark plugs for the 4B11 petrol, or glow plugs for the 4N13 diesel. This matches the layout and parts identified in Mitsubishi’s workshop manual and EPC for the 2015 model year.

FAQs

Does a 2015 Mitsubishi ASX have ignition leads?
No. The petrol 2.0L 4B11 engine uses coil‑on‑plug ignition with one coil per cylinder, and the diesel uses compression ignition with glow plugs. Neither setup has traditional HT ignition leads.

What should be serviced instead of ignition leads on a 2015 ASX?
Service the spark plugs at the scheduled interval and inspect the coil packs and their rubber boots for cracking, tracking, or moisture. Replace any faulty coils and fit the correct spec plugs.

I’ve got a misfire—could it be “ignition leads” on my ASX?
Because there are no leads, start with the spark plugs and coil packs. A scan for fault codes, a plug inspection, and a swap‑test of coils cylinder‑to‑cylinder usually pinpoints the issue quickly.