Parts for your 2023 Mitsubishi Eclipse cross-Radiator

2023 Mitsubishi Eclipse Cross Radiator: purpose, care and when to replace

Yes, a radiator is fitted and absolutely relevant on the 2023 Mitsubishi Eclipse Cross. Technical references including the Mitsubishi Motors 2023 Eclipse Cross Owner’s Manual (Cooling System section), Mitsubishi workshop/service information (MGSS), and the Mitsubishi ASA parts catalogue all specify a front-mounted aluminium radiator with electric fans for the 1.5‑litre turbo petrol model, and a multi-circuit cooling layout (including an engine radiator) for the Eclipse Cross PHEV. Different drivetrains, same outcome: liquid cooling with a conventional radiator to keep temps in check under the bonnet.

For this model, the radiator’s job is simple but critical: it sheds engine heat via coolant flowing through its aluminium core, with the fans and vehicle speed pulling air across the fins. On the PHEV, there are additional heat exchangers for the hybrid system, but the engine still relies on a proper radiator to stay in its sweet spot. Keep it healthy and the Eclipse Cross runs efficiently, avoids pinging, and protects gaskets, turbos and transmission coolers that might share the stack.

When servicing a 2023 Eclipse Cross radiator, the focus is on coolant quality, leak prevention and clean airflow. Mitsubishi specifies long‑life, silicate‑free coolant, the exact interval and spec live in the Owner’s Manual/service schedule, but long‑life coolants commonly stretch out to high kilometre and multi‑year change cycles. In Aussie and Kiwi conditions—heat, dust, stop‑start—an annual inspection is smart, even if the coolant isn’t due.

• Check the expansion tank level monthly and top up with the specified coolant type (don’t mix types).
• Inspect hoses, clamps, the radiator cap seal and the plastic end tanks for seepage, staining or cracks.
• Blow out bugs and debris from the fins, bent fins can be straightened gently.
• When flushing, use demineralised water and bleed air properly to avoid hot spots.
• If the core’s corroded, the tanks are split, or it fails a pressure test, replacement is the go. Use OE‑equivalent units, renew the cap and consider new hoses and thermostat at the same time.

Tell‑tales that need attention: rising temps under load, sweet coolant smells, an always‑on fan, brown or milky coolant, or a damp undertray. Left too long, a crook radiator can snowball into head gasket grief. Get ahead of it and the Eclipse Cross will happily rack up the kilometres without drama.

Popular questions

Does the 2023 Mitsubishi Eclipse Cross have a radiator?
Yes. Both the 1.5L turbo petrol and the PHEV variants use an engine radiator. Mitsubishi’s owner’s and service documentation confirms a front-mounted aluminium radiator with electric fans. The PHEV adds extra cooling circuits for the hybrid system, but the engine still relies on a conventional radiator.

How often should the coolant be changed?
Follow the maintenance schedule in the Owner’s Manual for your exact variant. The factory fill is a long‑life coolant, which typically runs lengthy intervals, but local conditions and towing can shorten that. A yearly inspection and test of coolant condition is a smart move between changes.

What are the signs the radiator needs replacing?
Look for overheating, low coolant with no obvious puddle, white or green crust around end tanks, discoloured coolant, or a radiator that can’t hold pressure. If any of these show up, have it pressure tested. If it fails, fit an OE‑spec replacement and refresh the cap and hoses.