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ENGINE COOLANT REPLACEMENT [MZR-CD (RF Turbo)]

BME011215001W05

  Warning

  • Drain the engine coolant while the engine is cold, otherwise it may burn you and cause serious injury.

1. Remove the cooling system cap, radiator drain plug and the rear heater unit drain plug (if equipped).

2. Drain the coolant into a container.

3. Flush the cooling system with water until all traces of color are gone.

4. Let the system drain completely.

5. Tighten the radiator drain plug.

Tightening torque

  0.78-1.57 N·m {8.0-16.0 kgf·cm, 7.0-13.8 in·lbf}

  Caution

  • The engine has aluminum parts that can be damaged by alcohol or methanol antifreeze. Do not use alcohol or methanol in the cooling system. Use only ethylene-glycol-based coolant.
  • Use only soft (demineralized) water in the coolant mixture. Water that contains minerals will reduce the coolant's effectiveness.
  • Engine coolant will damage paint. If engine coolant does get on a painted surface, rinse it off quickly.

6. Referring to the following chart, select proper volume percentage of the water and coolant.

Antifreeze solution mixture percentage

Coolant protection | Volume percentage (%) | Gravity at 20 °C {68 °F}
--- | --- | ---
Water | Coolant
Above -16 °C {3 °F} | 65 | 35 | 1.057
Above -26 °C {-15 °F} | 55 | 45 | 1.072
Above -40 °C {-40 °F} | 45 | 55 | 1.086

7. Slowly pour the coolant into the radiator up to the coolant filler port.

8. Refill the coolant into the reservoir up to the FULL mark on the coolant reservoir.

9. Fully install the cooling system cap.

  Caution

  • If the coolant temperature becomes too high, stop the engine to prevent it from overheating.

10. Start the engine and let it idle until the cooling fan operates.

11. After engine warms up, perform the following steps.

  (1) Run the engine at 2,500 rpm for 5 min.
  (2) Run the engine at 3,000 rpm for 5 s, then return to idling.
  (3) Repeat Step (2) several times.
  (4) Run the engine at idle for 1 min.

12. Stop the engine and wait until it is cool.

13. Inspect the coolant level.

  • If It is low, refill the coolant into the reservoir up to the FULL mark on the coolant reservoir.

14. Inspect for coolant leakage.

  • If the coolant leaks, specify the malfunctioning part and repair or replace it.