Parts for your 2000 Mitsubishi Lancer-Radiator

2000 Mitsubishi Lancer Radiator

A radiator is absolutely fitted and relevant on the 2000 Mitsubishi Lancer. Technical references including the Mitsubishi Lancer Workshop Manual (CK/CE/CG series, Group 14 – Cooling), the Haynes Mitsubishi Lancer & Mirage 1993–2005 repair manual, and the Mitsubishi ASA electronic parts catalogue list the complete cooling system with an aluminium crossflow radiator, plastic end tanks, electric fans, thermostat, surge tank and, on automatic variants, an in‑tank transmission oil cooler. So the radiator isn’t optional on this model – it’s core hardware.

In day‑to‑day terms, the radiator’s job is to pull heat out of the engine coolant so the 4G‑series petrol engines sit at a stable operating temperature. That protects head gaskets, keeps oil viscosity happy, and helps emissions and fuel economy. On auto Lancers, the lower tank also houses a small heat exchanger that tempers the automatic transmission fluid. Healthy airflow, a clean core and the correct coolant mix keep the lot working sweet as.

Good servicing habits go a long way. Coolant should typically be renewed about every 2 years or 40,000 km using an ethylene‑glycol, silicate‑free formula that meets Mitsubishi specs, mixed 50/50 with demineralised water (AU/NZ climates rarely need richer than that). Radiator caps fatigue with age, the OE pressure is commonly 0.9–1.1 bar depending on variant, and a tired cap can cause boil‑over or slow coolant loss. Hoses harden and clamps relax, so periodic inspection is smart.

• Look for crusty deposits around end tanks, damp hose ends, swollen hoses, or a sweet coolant smell after a drive.
• Check coolant colour, rusty or milky coolant points to neglect or cross‑contamination. On autos, also watch ATF for strawberry‑milk signs of an internal cooler leak.
• If replacing the radiator: allow the engine to cool, drain into a container for proper disposal, disconnect the battery, remove shroud/fans as needed, detach hoses and (auto only) cap transmission cooler lines, transfer rubber mounts, refit, then refill and bleed.
• Bleeding: heater on hot, fill to the neck, run until the fan cycles, squeeze the upper hose to purge air, top the surge tank, cap it, road test, and recheck the level next morning.
• Aftermarket alloy/plastic units are fine for daily duty, choose reputable cores and renew the cap and hoses if they’re ageing to avoid revisiting the job.

Popular questions about 2000 Mitsubishi Lancer radiators

What coolant type and capacity does a 2000 Lancer need?
The 2000 Lancer generally takes around 5–6 litres total capacity depending on engine and heater core volume. An ethylene‑glycol, silicate‑free coolant mixed 50/50 with demineralised water suits AU/NZ use. Always match the spec in the owner’s handbook and avoid mixing coolant chemistries.

How is air bled from the cooling system?
With the engine cold, heater set to hot, fill the radiator and surge tank. Start the engine, let it warm until the fan cycles, and gently squeeze the top hose to encourage bubbles out. Top up as the level drops. Fit the cap, take a short drive, then recheck levels once cool.

Does the auto Lancer’s radiator include a transmission cooler?
Yes. Automatic models have an integrated ATF cooler in the lower tank. When swapping the radiator, the ATF lines must be cleanly disconnected and reconnected, and fluid level checked afterwards. If the internal cooler fails, ATF and coolant can mix, so any milkiness in either fluid needs immediate attention.