Cooling System [MZI-3.7]: Removal & Installation Mazda CX-9 I рестайлинг

ENGINE COOLANT REPLACEMENT [MZI-3.7]

Note. If the "FL22" mark is shown on or near the cooling system cap, use Mazda Genuine FL22 engine coolant. FL22 type engine coolant is shipped as a diluted solution. Use the solution as is when replacing coolant.

Engine coolant capacity (approx. quantity) Single fan control module: 12.9 L {13.6 US qt, 11.4 Imp qt}

Dual fan control module: 13.3 L {14.1 US qt, 11.7 Imp qt}

Scheme 7

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1. Remove the cooling system cap.
2. Remove the radiator drain plug and drain the engine 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 1.5-2.4 N.m {15-25 kgf.cm, 13-21 in.lbf}
6. Referring to the following chart, select the correct volume percentage of the water and engine coolant. Antifreeze solution mixture percentage (Except FL22 type engine coolant) ENGINE COOLANT SPECIFICATIONS Engine 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. Refill the engine coolant into the coolant reserve tank up to the F mark on the tank.
8. Install the cooling system cap. CAUTION: If the water temperature gauge rises too high, stop the engine and decrease the engine coolant temperature to prevent overheating. Then, verify the malfunctioning part and repair or replace it. If the engine coolant level in the coolant reserve tank is below the L mark during engine coolant air bleeding operation, stop the engine, and after the engine coolant temperature decreases, add engine coolant. Then, resume the engine coolant air bleeding operation.
9. Start the engine and warm up the engine by idling.
10. After the engine warms up, perform the following steps. At this time, be careful of the engine coolant temperature to prevent overheating. NOTE: If the accelerator pedal is depressed continuously for a specified time, the engine speed may decrease to the idle speed. This is does not indicate a malfunction. Run the engine at approx. 4,000 RPM for 1 min. Run the engine at idle for 1 min. Repeat steps ( 1 ), ( 2 ) approx. 2 times. Operate the heater at the maximum temperature and airflow, and verify that hot air blows from vent.
11. Stop the engine, and inspect the engine coolant level after the engine coolant temperature decreases. If it is low, repeat steps 7 - 10 .
12. Inspect for engine coolant leakage. (See «ENGINE COOLANT LEAKAGE INSPECTION [MZI-3.7]»(ref-663017-S28656668342014101600000) .)

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Scheme 11

1. Measure the engine coolant temperature and specific gravity using a thermometer and a hydrometer. CAUTION: Use engine coolant at a concentration that meets the environmental conditions in which the vehicle is driven, otherwise engine damage could occur. The engine has aluminum parts and must be protected by an ethylene-glycol-based coolant to prevent corrosion and freezing. Do not use coolants containing Alcohol, Methanol, Borate or Silicate. These coolants could damage the cooling system. Use only soft (demineralized) water in the coolant mixture. Water that contains minerals will cut down on the coolants effectiveness. Engine coolant damages paint. If engine coolant does get on a painted surface, rinse it off quickly. NOTE: If the "FL22" mark is shown on or near the cooling system cap, use Mazda Genuine FL22 engine coolant. FL22 engine coolant is shipped as a diluted soultion. Use the solution as is when replacing coolant.
2. Determine the engine coolant protection level by referring to the graph shown in the figure. If the engine coolant protection level is not correct, add water or engine coolant.

COOLANT RESERVE TANK REMOVAL/INSTALLATION [MZI-3.7]

Scheme 12

1. Drain the engine coolant until the coolant reserve tank becomes empty. (See «ENGINE COOLANT REPLACEMENT [MZI-3.7]»(ref-663017-S17886152422014101600000) .)
2. Remove in the order indicated in the table in the figure.
3. Install in the reverse order of removal.
4. Refill the engine coolant. (See «ENGINE COOLANT REPLACEMENT [MZI-3.7]»(ref-663017-S17886152422014101600000) .)
5. Inspect for engine coolant leakage. (See «ENGINE COOLANT LEAKAGE INSPECTION [MZI-3.7]»(ref-663017-S28656668342014101600000) .)

RADIATOR REMOVAL/INSTALLATION [MZI-3.7]

Scheme 13

1. Disconnect the negative battery cable.
2. Drain the engine coolant. (See «ENGINE COOLANT REPLACEMENT [MZI-3.7]»(ref-663017-S17886152422014101600000) .)
3. Remove the air cleaner and fresh air duct component. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-3.7]»(ref-663036-S20639303202014101600000) .)
4. Remove the cooling fan component. (See «COOLING FAN COMPONENT REMOVAL/INSTALLATION [MZI-3.7]»(ref-663017-S08636677872014101600000) .)
5. Disconnect the ATF oil cooler hose from the radiator. (See OIL COOLER REMOVAL/INSTALLATION [MZI-3.7] .)
6. Remove in the order indicated in the table in the figure.
7. Install in the reverse order of the removal.
8. Refill the engine coolant. (See «ENGINE COOLANT REPLACEMENT [MZI-3.7]»(ref-663017-S17886152422014101600000) .)
9. Inspect for engine coolant leakage. (See «ENGINE COOLANT LEAKAGE INSPECTION [MZI-3.7]»(ref-663017-S28656668342014101600000) .)
10. Inspect the ATF level. (See AUTOMATIC TRANSAXLE FLUID (ATF) INSPECTION [AY6A-EL, AY6AX-EL] .)

Upper Mount Rubber Bracket Removal Note

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1. Insert a flathead screwdriver into the upper mount rubber bracket notch.
2. Apply force in the direction shown by the arrow in the figure.

Radiator Removal Note

1. Remove the radiator from above the engine compartment.

THERMOSTAT REMOVAL/INSTALLATION [MZI-3.7]

Scheme 16

1. Disconnect the negative battery cable.
2. Drain the engine coolant. (See «ENGINE COOLANT REPLACEMENT [MZI-3.7]»(ref-663017-S17886152422014101600000) .)
3. Remove the air cleaner and fresh air duct component. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-3.7]»(ref-663036-S20639303202014101600000) .)
4. Remove in the order indicated in the table in the figure.
5. Install in the reverse order of removal.
6. Refill the engine coolant. (See «ENGINE COOLANT REPLACEMENT [MZI-3.7]»(ref-663017-S17886152422014101600000) .)
7. Inspect for engine coolant leakage. (See «ENGINE COOLANT LEAKAGE INSPECTION [MZI-3.7]»(ref-663017-S28656668342014101600000) .)

Scheme 17

1. Install the thermostat into the thermostat case with the jiggle pin at the top.

O-ring Installation Note

1. Clean and inspect the O-ring. Install a new O-ring if necessary.
2. Apply clean engine coolant to the O-ring.
3. Install the O-ring.

WATER PUMP REMOVAL/INSTALLATION [MZI-3.7]

Note. The following procedure "WATER PUMP REMOVAL/INSTALLATION" is performed after the engine and transaxle component is removed from the vehicle.

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1. Drain the engine oil. (See ENGINE OIL REPLACEMENT [MZI-3.7] .)
2. Remove the engine and transaxle component. (See «ENGINE REMOVAL/INSTALLATION [MZI-3.7]»(ref-663015-S18968885822014101600000) .)
3. Secure the engine and transaxle component using a hoist and the SST. WARNING: Protect and stabilize the lowered engine and transaxle component with crossties to prevent injury or damage due to roll over.
4. Remove the dynamic chamber and throttle body as a single unit. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-3.7]»(ref-663036-S20639303202014101600000) .)
5. Remove the ignition coils. (See IGNITION COIL REMOVAL/INSTALLATION [MZI-3.7] .)
6. Remove the dipstick.
7. Remove the power steering oil pump drive belt. (See «DRIVE BELT REMOVAL/INSTALLATION [MZI-3.7]»(ref-663015-S20413559332014101600000) .)
8. Remove the power steering oil pump. (See POWER STEERING OIL PUMP REMOVAL/INSTALLATION .)
9. Remove the timing chain component. (See «TIMING CHAIN REMOVAL/INSTALLATION [MZI-3.7]»(ref-663015-S39772852162014101600000) .)
10. Remove in the order indicated in the table in the figure.
11. Install in the reverse order of removal.
12. Start the engine and: Inspect the runout and contact on the pulley and belt. Inspect for engine oil, engine coolant, ATF, power steering fluid and fuel leakage. Verify the ignition timing, idle speed and idle mixture. (See «ENGINE TUNE-UP [MZI-3.7]»(ref-663015-S42425548272014101600000) .) Engine accessories operation.
13. Perform a road test.

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1. Loosen the upper timing chain guide (RH) bolt A.
2. Remove the upper timing chain guide (RH) bolt B.
3. Move the upper timing chain guide (RH) as shown in the figure.
4. Retighten the bolt A.

Water Pump Removal Note

Note. When the water pump is removed, the engine coolant may flow through the cylinder block and penetrate the oil pan. To prevent the engine coolant from accumulating in the oil pan, remove the oil pan drain plug before removing the water pump.

Scheme 22

1. Remove the oil pan drain plug. (See ENGINE OIL REPLACEMENT [MZI-3.7] .)
2. To prevent engine coolant from penetrating the oil pan, line the cylinder block with plastic sheeting as shown in the figure before removing the water pump.

Scheme 23

1. Tighten the water pump bolts in the order shown in the figure. Tightening torque 8.5-11.5 N.m {87-117 kgf.cm, 76-101 in.lbf}

COOLING FAN COMPONENT REMOVAL/INSTALLATION [MZI-3.7]

Scheme 24

1. Disconnect the negative battery cable.
2. Drain the engine coolant. (See «ENGINE COOLANT REPLACEMENT [MZI-3.7]»(ref-663017-S17886152422014101600000) .)
3. Remove the air cleaner and fresh air duct component. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-3.7]»(ref-663036-S20639303202014101600000) .)
4. Remove the engine cover. (See «ENGINE COVER REMOVAL/INSTALLATION [MZI-3.7]»(ref-663015-S15271151742014101600000) .)
5. Remove the dipstick.
6. Remove in the order indicated in the table in the figure.
7. Install in the reverse order of removal.
8. Refill the engine coolant. (See «ENGINE COOLANT REPLACEMENT [MZI-3.7]»(ref-663017-S17886152422014101600000) .)
9. Inspect for engine coolant leakage. (See «ENGINE COOLANT LEAKAGE INSPECTION [MZI-3.7]»(ref-663017-S28656668342014101600000) .)

ATF Oil Cooler Pipe Removal Note

1. Remove the ATF oil cooler pipe with the hoses still connected. Position the ATF oil cooler pipe so that it is out of the way.

Cooling Fan Component Removal Note

1. Remove the cooling fan component from above the engine compartment.

Scheme 25

1. Verify that the battery is fully charged. (See «BATTERY INSPECTION [MZI-3.7]»(ref-663012-S41929845912014101600000) .)
2. Disconnect the cooling fan motor connector (fan control module side, 2 terminals).
3. Install a tester and battery to the cooling fan motor connector as shown in the figure.
4. Verify that each fan motors operate smoothly at the standard current. If there is any malfunction, replace the applicable part. Cooling fan motor standard current [Single Fan Control Module] No. 1, No. 2: 11.2-15.2 A [12 V] Cooling fan motor standard current [Dual Fan Control Module] No. 1, No. 2: 17-23 A [12 V]

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1. Connect the M-MDS to the DLC-2.
2. Start and warm up the engine.
3. Monitor the engine coolant temperature with the M-MDS.
4. Measure the voltage at terminal 2 of the fan control module connector (2 terminals) as shown in the table below. If not within the specification, inspect the input signals from the following parts. Cylinder Head Temperature (CHT) sensor Refrigerant pressure switch (middle) Single fan control module INSPECTION CHART Inspection Result Condition A/C Engine coolant temp. IG SW ON or idling OFF Less than 96 °C {205 °F} 0 V (Fan stops.) Idling OFF 96-106 °C {205-223 °F} 4.11-10.29 V Idling ON () 96-106 °C {205-223 °F} Approx. 6.4 V Idling ON () 96-106 °C {205-223 °F} Approx. 7.7 V Idling OFF More than 106 °C {223 °F} B+ Dual fan control module INSPECTION CHART Inspection Result Condition A/C Engine coolant temp. IG SW ON or idling OFF Less than 96 °C {205 °F} 0 V (Fan stops.) Idling OFF 96-106 °C {205-223 °F} 4.11-10.29 V Idling ON (1) 96-106 °C {205-223 °F} Approx. 6.6 V Idling ON (2) 96-106 °C {205-223 °F} Approx. 7.5 V Idling OFF More than 106 °C {223 °F} B+ (1) Refrigerant pressure switch (middle) is off. (2) Refrigerant pressure switch (middle) is on.
5. If all the above parts are normal, replace the fan control module.