Parts for your 2022 Mitsubishi Eclipse cross-Radiator hose

2022 Mitsubishi Eclipse Cross radiator hose — what it does and when to replace it

Based on Mitsubishi Motors Workshop/Service Manual (Cooling System, Group 14) for the 2022 Eclipse Cross (GK/GL) and the Mitsubishi ASA Electronic Parts Catalogue, all 2022 Eclipse Cross variants — including the 1.5‑litre turbo petrol and the PHEV — are fitted with an upper and a lower radiator hose. So yes, a radiator hose is absolutely relevant to this model.

The radiator hose is the formed rubber plumbing that carries coolant between the engine and radiator, letting heat bleed off under the bonnet so the engine stays in its sweet spot. On the 2022 Eclipse Cross, these hoses work with the thermostat, water pump and radiator to maintain stable temps, protect the turbo hardware (on the 1.5T), and keep cabin heating consistent. On PHEV models, the engine loop still uses conventional hoses, and there are additional coolant circuits for electrified components.

Hoses live a tough life — heat, pressure, and vibration. Over time the rubber can harden, soften, crack, or balloon near the clamp. A sensible rule-of-thumb is inspection at every service and proactive replacement around 6–8 years or 120,000–160,000 kilometres, sooner if there are signs of ageing or if the vehicle tows or sees hot Aussie/Kiwi summers.

• What to look for: surface cracking, oil swelling, spongey spots, coolant weep marks, dried crust at clamps, or a hose that’s gone out of round.
• When driving: keep an eye on temperature warnings, sweet coolant smell, misting under the bonnet, or a low coolant level.

When replacing, stick with quality formed hoses that match the Eclipse Cross routing, universal hose can kink and restrict flow. Reuse or replace with constant‑tension clamps rather than cheap worm clamps that can loosen as the hose “cold flows”. Always work on a stone‑cold engine, drain coolant cleanly, and refill with Mitsubishi‑approved long‑life coolant mixed to spec. Bleed the system properly: heater on hot, run until fans cycle, top up the radiator and overflow, then recheck after a few short trips. PHEV models may have extra bleed steps — follow the service manual procedure.

If in doubt, a trusted workshop can pressure‑test the cooling system and perform a hose-and-coolant refresh in one go. It’s a straightforward bit of preventative maintenance that keeps the Eclipse Cross happy and heading down the road without drama.

Popular questions

How often should radiator hoses be replaced on a 2022 Eclipse Cross?
There’s no hard expiry date, but most techs recommend inspection every service and replacement around 6–8 years or 120,000–160,000 km. Heat, turbocharging, and local climate can shorten hose life. If any swelling, cracking, or seepage shows up, swap them sooner and refresh the coolant at the same time.

Can universal hoses be used, or should they be OEM‑style?
Use formed hoses that match the factory bends. Universal straight hose can kink, reduce flow, and rub on nearby parts. OEM or quality OE‑equivalent hoses plus constant‑tension clamps will seal better through heat cycles and last longer.

What are the signs a radiator hose is failing?
Look for soft spots, cracking, bulges near clamps, coolant smell, dried pink/white/green residue at joints, or rising engine temps. After a drive, any fresh coolant drips or steam under the bonnet is a red flag — stop, let it cool, and inspect before continuing.