Parts for your 2017 Mitsubishi Eclipse cross-Ignition leads

2017 Mitsubishi Eclipse Cross ignition leads — are they used?

For anyone hunting down “ignition leads” for a 2017 Mitsubishi Eclipse Cross, here’s the straight answer: they’re not used on this model. Technical references such as Mitsubishi service literature and global parts catalogues for the Eclipse Cross launch engines (notably the 1.5L MIVEC turbo 4B40 and markets with a 2.0L MIVEC) show a direct coil-on-plug ignition system. That setup places an individual ignition coil directly on top of each spark plug, so there are no traditional high-tension ignition leads running across the engine.

Why did Mitsubishi go this way? Coil-on-plug improves spark energy and timing accuracy, cuts electrical losses and interference, and tidies up the packaging under the bonnet. It also reduces maintenance items compared with old-school distributor and lead systems. While there are no external leads, each coil has a short insulating boot that connects to the plug—these aren’t the same as conventional leads and are part of the coil assembly or a small service boot, depending on supplier.

What should owners service instead? Focus on the spark plugs and the coil units themselves:

• Replace spark plugs at the interval in the maintenance schedule (often around 90,000–120,000 km for iridium plugs, depending on market guidance).
• When the plugs are out, check each coil and its rubber boot for cracking, carbon tracking, oil contamination, or moisture. Lightly apply dielectric grease to the inside of the boot if recommended.
• If there’s a misfire (common OBD-II hints are P0300–P0304), swap the suspect coil to another cylinder to confirm the fault follows the coil before replacing.
• Avoid heavy water spray around the coil tops when cleaning the engine bay, moisture under the covers can cause misfires.

Bottom line: the 2017 Eclipse Cross doesn’t have ignition leads to replace. Keeping quality plugs fitted, coils clean and dry, and following the service schedule will keep the ignition system happy and the turbo four running sweet as.

FAQs

Does a 2017 Mitsubishi Eclipse Cross have ignition leads?
It doesn’t. The Eclipse Cross uses a coil-on-plug system, where each spark plug has its own ignition coil mounted directly on top. That design removes the need for traditional high-tension leads.

What should be serviced instead of ignition leads on this model?
Stick to timely spark plug replacement and inspect each coil and coil boot for cracks, tracking, or moisture. If there’s a misfire, a quick coil swap test between cylinders helps confirm a faulty unit before replacement.

Can the coil boots be replaced separately?
On many coils the boot is serviceable, but availability varies by supplier. If the boot is heat-hardened, torn, or tracked, replace the boot (if available) or the complete coil with a quality part.