Parts for your 2022 Mitsubishi Asx-Radiator

2022 Mitsubishi ASX Radiator — What It Does and How to Look After It

The 2022 Mitsubishi ASX is fitted with a conventional liquid-cooling system that includes an aluminium crossflow radiator and electric cooling fans. This is confirmed by Mitsubishi’s Workshop Manual for the ASX/RVR/Outlander Sport platform (GA2W/GA3W series) cooling system section, the 2022 ASX Owner’s Manual (engine coolant and radiator cap sections), and the Mitsubishi ASA electronic parts catalogue, which lists a radiator assembly for 2022 build years. So yes—the radiator is absolutely relevant on the 2022 ASX.

The radiator’s job is straightforward: carry heat away from the 2.0‑litre petrol engine via coolant, shed that heat to outside air, and keep the engine in its happy temperature range. That stable temperature means better performance, fuel economy, and longevity—protecting head gaskets, plastic tanks, and seals. On some variants, the broader cooling circuit also helps manage transmission temperatures via an auxiliary heat exchanger.

As part of regular servicing, it’s smart to:

• Check coolant level and colour under the bonnet when cold, and top up only with the correct coolant type specified in the owner’s manual (Mitsubishi Genuine Super Long-Life Coolant or equivalent). Avoid mixing types.
• Inspect for leaks, staining, or that sweet coolant smell around end tanks, hose joins, the radiator cap, and the water pump.
• Look over hoses and clamps for softness, cracks, or swelling, replace aged hoses as preventative maintenance.
• Ensure fans kick in at operating temperature, overheating at idle but not on the open road often points to a fan or relay issue.

Coolant change intervals should follow the service schedule, many long-life formulas go years between changes, but time and kilometres both matter. When replacing coolant, use the correct premix or a 50/50 distilled-water blend if using concentrate, bleed air properly, and dispose of old coolant responsibly.

Radiator replacement is on the cards if there’s impact damage, repeated overheating, persistent leaks from plastic end tanks, or internal blockage causing hot spots. A proper job usually means removing the fan shroud, disconnecting hoses (and any cooler lines where fitted), lifting the radiator, and refitting with new clamps. It’s wise to pair a new radiator with a fresh cap, new upper and lower hoses, and—if age or symptoms warrant it—a thermostat. Always pressure-test and road-test after refilling and bleeding.

Quick safety tip: never open the radiator cap when hot—the system is pressurised and can cause scalding. If the temperature light or gauge climbs, pull over safely, shut down, and let it cool.

FAQs

What coolant should the 2022 ASX use, and how often is it changed?
Mitsubishi specifies a long-life ethylene-glycol coolant that meets the manufacturer’s requirements (often sold as Mitsubishi Genuine Super Long-Life Coolant). Change intervals are model- and market-specific, so follow the maintenance schedule in the owner’s manual. If history is unknown or the coolant looks rusty or murky, a full flush and refill is sensible.

Is it safe to drive with a small radiator leak?
It’s risky. Even a slow leak can lead to rapid overheating, which can warp the cylinder head or blow a head gasket. If a top-up is unavoidable to reach a workshop, keep a close eye on temperature and stop immediately if it rises—then arrange proper repair.

How can they tell if the radiator is blocked or if it’s a thermostat issue?
A stuck thermostat often causes slow warm-up or sudden overheating with a cold lower hose. A partially blocked radiator may show normal temps at highway speed but overheating in traffic, with uneven temperature across the core. A workshop can confirm with infrared temperature checks and flow testing.