Mitsubishi Check Coolant Level or Add Antifreeze
Is your Mitsubishi dashboard displaying a coolant symbol? Learn how to fix the problem by checking the fluid level of your coolant and adding coolant if the reservoir is low. This guide provides procedures for checking and adding coolant to a Mitsubishi.
Your Mitsubishi may be low on coolant if:
- Engine overheats
- The engine coolant light comes on.
- Low coolant level error message on the dashboard
If the Mitsubishi is overheating or the temperature light comes on, there is a high chance that the engine coolant level is low.
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Pull over, turn off the engine, allow it to cool down, and check the engine coolant level. See the instructions below.
What you need
- 50/50 Mixed Long Life Blue Engine Coolant
Procedure
- Allow the engine to cool down.
- Open the hood by pulling the hood release under the dashboard.
- Locate the overflow tank and look at its side to determine the current coolant level.
It should be between MIN and MAX marks. The overflow tank for the radiator should be just behind the radiator or on the passenger side of the engine. - If the level is below the MIN mark, open the cap and add pre-mixed engine coolant.
- Look on the side of the overflow tank again to re-check the coolant level. Ideally, the level should be in the middle.
- Start the engine and ensure the engine does not overheat and the coolant level does not drop.
It should be between MIN and MAX marks. 
The overflow tank for the radiator should be just behind the radiator or on the passenger side of the engine.If the engine coolant reserve tank needs coolant after you refill it, you may need to add coolant to the radiator. Wait for the engine to cool down, then remove the radiator cap and coolant directly to the radiator.
Do not drive if your Mitsubishi continues to overheat or lose coolant. Continuing to drive with an overheated engine can lead to permanent engine damage.
What type/color is Mitsubishi coolant
Mitsubishi recommends using the OEM coolant, Mitsubishi Motors Super Long Life Coolant Premium. Mitsubishi’s coolant color is blue. An aftermarket coolant must be an ethylene glycol-based non-silicate, non-amine, non-nitrate, and non-borate coolant with long-life hybrid organic acid technology. Do not use alcohol or methanol antifreeze.
The coolant must be mixed with 50% water and 50% antifreeze.
- Long Life Engine Coolant
Why is my Mitsubishi overheating?
Common problems that lead to a Mitsubishi overheating include:
- Faulty thermostat
- Weak radiator cap
- Low engine coolant level
- Cracked radiator housing
- Bad water pump
Have a certified auto mechanic diagnose your vehicle to find out what is wrong.
We hope you find the Mitsubishi Check Coolant Level or Add Antifreeze guide helpful. Check these troubleshooting and repair guides for more help on your Mitsubishi.
