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Engine Cooling System: Maintenance Infiniti FX45 I

Cooling System (Mechanical) 6 illustrations ~299 words

Flushing Cooling System

  1. Install reservoir tank, and radiator drain plug. Radiator drain plug: : 1.19 N.m (0.12 kg-m, 11 in-lb) If cylinder block water drain plugs are removed, close and tighten them. Refer to «ASSEMBLY»(ref-158963-S21089060012005020300000) .
  2. Fill thermostat housing with water until water spills from the air relief hole, then close air relief plug. Fill thermostat housing and reservoir tank with water and reinstall radiator cap.
  3. Run engine and warm it up to normal operating temperature.
  4. Rev engine two or three times under no-load.
  5. Stop engine and wait until it cools down.
  6. Drain water from the system. Refer to «Draining Engine Coolant»(ref-172394-S36492838212005022800000) .
  7. Repeat steps 1 - 5 until clear water begins to drain from radiator.

Scheme 13

Scheme 13: REMOVAL AND INSTALLATION
Scheme 13: REMOVAL AND INSTALLATION
WARNINGNever remove radiator cap when engine is hot. Serious burns could occur from high-pressure engine coolant escaping from thermostat housing.

Scheme 14

Scheme 14: Removal
Scheme 14: Removal

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Scheme 18
  1. Remove engine cover with power tool. Refer to «ENGINE ROOM COVER»(ref-158963-S06074735262005020300000) .
  2. Remove engine front undercover with power tool.
  3. Drain engine coolant from radiator. Refer to «CHANGING ENGINE COOLANT»(ref-172394-S29201729852005022800000) . NOTE: Perform this step when engine is cold. Do not spill engine coolant on drive belts.
  4. Remove air duct (inlet), air cleaner case and mass air flow sensor assembly. Refer to «AIR CLEANER AND AIR DUCT»(ref-158963-S32645370962005020300000) .
  5. Remove radiator hoses (upper and lower). CAUTION: Be careful not to allow engine coolant to drive belts.
  6. Disconnect A/T fluid cooler hoses. Install blind plug to avoid leakage of A/T fluid.
  7. Remove radiator shroud (lower). While pressing left and right pawls in direction indicated by arrows, pull radiator shroud (lower) rearwards to remove.
  8. Lift up and remove radiator shroud.
  9. Remove washer tank mounting bolts.
  10. Rotate two radiator upper mount brackets 90 degrees in the direction shown in the figure, and remove them.
  11. Lift up and remove radiator. CAUTION: Do not damage or scratch A/C condenser and radiator core when removing.

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