Parts for your 2022 Mitsubishi Asx-Radiator hose

2022 Mitsubishi ASX radiator hose — purpose, replacement and maintenance

A radiator hose is absolutely used on the 2022 Mitsubishi ASX. Technical references from Mitsubishi Motors’ Workshop Manual (Cooling System, Group 14) and the Mitsubishi ASA parts catalogue identify dedicated upper and lower radiator hoses for the ASX/RVR platform used in 2020–2022 models. Major aftermarket catalogues (e.g., Gates and Dayco Australia/NZ) also list pre‑formed upper and lower radiator hoses for the 2.0‑litre petrol ASX of this model year. So yes, the radiator hose is relevant and fitted on this vehicle.

On the 2022 ASX, the radiator hoses carry coolant between the engine and the radiator. The upper hose takes hot coolant out of the engine to the radiator, the lower hose brings cooled fluid back in. They’re moulded, reinforced rubber pieces designed to hold pressure and temperature, and they’re critical to preventing overheating—whether it’s a long, hot Aussie summer run or a chilly Kiwi alpine climb.

For servicing, the radiator hoses deserve a quick check at every service interval. With the engine stone cold, a gentle squeeze test can reveal soft spots, while a visual check picks up cracking, glazing, swelling near the ends, or dried coolant crust around clamps. Oil contamination on the hose is also a bad sign, as oil degrades rubber. When replacing, it’s smart to fit quality, vehicle‑specific pre‑formed hoses and fresh clamps (spring or constant‑tension style are preferred), and consider doing the pair—upper and lower—together. If the ASX has clocked up a few years, adding heater hoses to the job can save a second labour hit later.

As a rule of thumb, original hoses that are six to eight years old or around 120,000–150,000 km are candidates for replacement, especially if the vehicle tows, sees high ambient temps, or the coolant service history is unknown. After hose replacement, refill with the correct coolant type specified by Mitsubishi (Super Long Life Coolant or an approved equivalent), avoid mixing types, and bleed the system properly with the heater on. Recheck the level after the first drive and again within a week.

• Cracks, splits, or glazing on the rubber
• Bulges or soft spots, especially near clamp areas
• Coolant smell, white/green crust or dampness at hose ends
• Overheating, low coolant warnings, or repeated top‑ups
• Hose feels spongy or excessively hard when cold

Popular questions

How often should radiator hoses be replaced on a 2022 Mitsubishi ASX?
Most drivers won’t need hoses before 6–8 years or roughly 120,000–150,000 km, but condition trumps kilometres. If there’s any cracking, swelling, soft spots, or coolant residue at the ends, it’s time. Inspect at every service and replace early if the vehicle tows, works hard in heat, or the coolant hasn’t been maintained.

What are the signs a radiator hose is failing on an ASX?
Look for visible cracks, bulges, or dampness at the clamps, a sweet coolant smell, or dried coolant crust. Under the bonnet, a hose that feels oddly soft or overly rigid when cold is suspect. On the road, rising temperature gauge readings or frequent coolant top‑ups are red flags.

Can you drive with a leaking radiator hose?
It’s risky. Even a small leak can turn into a blow‑out under pressure, leading to rapid overheating and possible engine damage. If a leak is suspected, top up coolant only if safe to do so, keep the heater on full hot to shed heat, and head straight to a workshop—not a long drive.