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Mitsubishi — Pouring coolant

Maintenance · Cooling system

From a Mitsubishi operator's manual — check it applies to your exact model before use.

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Before you start

  • Never open the radiator filler cap while the engine is operating or immediately after it is stopped; steam and hot coolant may cause burns.
  • Always add coolant having the same LLC concentration.

Procedure

  1. Make sure the drain cocks on the engine and water pump are closed firmly.
  2. Remove the radiator cap and pour undiluted LLC.
  3. Pour water (soft water with minimal impurities) slowly to the full level.
  4. Loosen the air vent cocks on the upper sections of the air cooler water pipes to remove air.
  5. Check the radiator and other parts for coolant leaks; repair if found.
  6. When coolant reaches the full level, close the radiator cap securely.
  7. Crank the engine for about 10 seconds or less using the starters.
  8. Wait about 1 minute, then repeat cranking several times to remove air from the water pump.
  9. Check the coolant level in the radiator.
  10. Pour coolant to the [FULL] level in the reserve tank if installed.

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

  • LLC concentration per LLC concentration chart

Source: Mitsubishi operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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