Engine Cooling System: Removal & Installation Mazda CX-5 I

ENGINE COOLANT REPLACEMENT [SKYACTIV-G 2.0]

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 [Without oil cooler] (approx. quantity)

MTX: 7.4 L {7.8 US qt, 6.5 Imp qt}

ATX: 7.6 L {8.0 US qt, 6.7 Imp qt}

Engine coolant capacity [With oil cooler] (approx. quantity)

MTX: 7.5 L {7.9 US qt, 6.6 Imp qt}

ATX: 7.8 L {8.2 US qt, 6.9 Imp qt}

Scheme 8

Scheme 9

Scheme 10

1. Remove the cooling system cap. (Scheme 8): Identifying "FL22" Mark On Cooling System Cap
2. Remove the service hole cover (installed to front under cover No.1) used to drain the engine coolant. (Scheme 9): Identifying Front Under Cover No.1, Service Hole Cover And Screw
3. Loosen the radiator drain plug and drain the engine coolant into a container.
4. Flush the cooling system with water until all traces of color are gone.
5. Let the system drain completely.
6. Tighten the radiator drain plug.
7. Referring to the following chart, select the correct volume percentage of the water and engine coolant. (Scheme 10): Identifying Cooling System Cap And Radiator Drain Plug ANTIFREEZE SOLUTION MIXTURE PERCENTAGE (EXCEPT FL22 TYPE ENGINE COOLANT) 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
8. Refill the engine coolant from the radiator filler neck until it is close to the top of the radiator filler neck.
9. Refill the engine coolant into the coolant reserve tank up to the F mark on the tank.
10. Install the cooling system cap. CAUTION: If the high engine coolant temperature warning light flashes, stop the engine to lower the engine coolant temperature and prevent overheating. Then, verify the malfunctioning part and repair or replace it.
11. Start the engine and warm up the engine by idling.
12. 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 due to the fuel cut control operation, which prevents overheating, and it does not indicate a malfunction. Run the engine at 2,500 rpm for 5 min. Maintain the engine speed at 3,000 rpm for 5 s, and then idle. Repeat steps ( 1 ), ( 2 ) several times.
13. Stop the engine, and inspect the engine coolant level after the engine coolant temperature decreases. If it is low, repeat steps 8 - 12.
14. Inspect for engine coolant leakage. (See «ENGINE COOLANT LEAKAGE INSPECTION [SKYACTIV-G 2.0]»(ref-615406-S41034731322014051000000) ).
15. Install the service hole cover.

Scheme 11

Scheme 12

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 coolant's 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 type engine coolant is shipped as a diluted solution. Use the solution as is when replacing coolant. (Scheme 11): Identifying "FL22" Mark On Cooling System Cap
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. (Scheme 12): Specific Gravity Versus Coolant Temperature Graph

RADIATOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

Scheme 13

1. Disconnect the negative battery cable. (See «NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0]»(ref-615412-S04991947062014051000000) ).
2. Remove the front under cover No.1. (See «FRONT UNDER COVER NO.1 REMOVAL/INSTALLATION»(ref-615433-S34343193522014051000000) ).
3. Drain the engine coolant. (See «ENGINE COOLANT REPLACEMENT [SKYACTIV-G 2.0]»(ref-615406-S03293741932014051000000) ).
4. Remove the plug hole plate. (See «PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615399-S02010689542014051000000) ).
5. Remove the air cleaner, air hose and fresh air duct component. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615404-S24638618012014051000000) ).
6. Remove the coolant reserve tank. (See «COOLANT RESERVE TANK REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615406-S37590576392014051000000) ).
7. Remove the cooling fan component. (See «COOLING FAN MOTOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615406-S32490169072014051000000) ).
8. Remove in the order indicated in the table.
9. Install in the reverse order of removal.
10. Refill the engine coolant. (See «ENGINE COOLANT REPLACEMENT [SKYACTIV-G 2.0]»(ref-615406-S03293741932014051000000) ).
11. Inspect for engine coolant leakage. (See «ENGINE COOLANT LEAKAGE INSPECTION [SKYACTIV-G 2.0]»(ref-615406-S41034731322014051000000) ). (Scheme 13): Identifying Radiator, Upper Mount Rubber Bracket And Lower Radiator Hose

Upper Mount Rubber Bracket Removal Note

Scheme 14

1. While pressing down the upper mount rubber bracket tab lightly in the direction of the arrow shown in the figure, pull out the upper mount rubber bracket toward the vehicle rear.
2. Remove the upper mount rubber bracket. (Scheme 14): Removing Upper Mount Bracket

Scheme 15

Scheme 16

1. To prevent damage to the radiator core, protect it by covering the radiator surface with cardboard.
2. Lift the radiator and remove it from the radiator installation holes on the shroud panel.
3. Move the radiator and condenser to the engine side.
4. Remove the two bolts (lower side) which secure the condenser to the radiator. (Scheme 15): Removing Lower Side Bolts Securing Condenser To Radiator With Torque Specifications
5. Remove the two bolts (upper side) which secure the condenser to the radiator.
6. Remove the radiator from above the engine compartment. (Scheme 16): Identifying Condenser To Radiator Securing Bolts With Torque Specifications

THERMOSTAT REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

Scheme 17

1. Disconnect the negative battery cable. (See «NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0]»(ref-615412-S04991947062014051000000) ).
2. Drain the engine coolant. (See «ENGINE COOLANT REPLACEMENT [SKYACTIV-G 2.0]»(ref-615406-S03293741932014051000000) ).
3. Remove the plug hole plate. (See «PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615399-S02010689542014051000000) ).
4. Remove the air cleaner, air hose and fresh air duct component. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615404-S24638618012014051000000) ).
5. Remove the battery, battery tray and PCM component. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615412-S41218039042014051000000) ).
6. Remove in the order indicated in the table.
7. Install in the reverse order of removal.
8. Refill the engine coolant. (See «ENGINE COOLANT REPLACEMENT [SKYACTIV-G 2.0]»(ref-615406-S03293741932014051000000) ).
9. Inspect for engine coolant leakage. (See «ENGINE COOLANT LEAKAGE INSPECTION [SKYACTIV-G 2.0]»(ref-615406-S41034731322014051000000) ). (Scheme 17): Identifying Thermostat, Cover And Lower Radiator Hose With Torque Specifications

Thermostat Cover Removal Note

1. Place rags on the transaxle case around the area under the thermostat cover.
2. Slightly loosen the three thermostat cover bolts and use the rags to absorb the draining engine coolant. CAUTION: Do not remove the thermostat cover completely at this time because the engine coolant remaining in the engine will drain out.
3. After the engine coolant stops draining, remove the thermostat cover.

Scheme 18

1. Install the thermostat with the jiggle pin aligned with the notch of the water outlet. (Scheme 18): Identifying Thermostat, Water Outlet, Juggle Pin And Notch

WATER PUMP REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

Note. Do not disassemble the water pump because it is a precision unit. Remove/install the water pump pulley and water pump from the underside of the vehicle.

Scheme 19

1. Disconnect the negative battery cable. (See «NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0]»(ref-615412-S04991947062014051000000) ).
2. Remove the front under cover No.2. (See «FRONT UNDER COVER NO.2 REMOVAL/INSTALLATION»(ref-615433-S21444705852014051000000) ).
3. Remove the splash shield (RH). (See «SPLASH SHIELD REMOVAL/INSTALLATION»(ref-615433-S30142483462014051000000) ).
4. Drain the engine coolant. (See «ENGINE COOLANT REPLACEMENT [SKYACTIV-G 2.0]»(ref-615406-S03293741932014051000000) ).
5. Remove the water pump drive belt with the generator drive belt still installed and set it out of the way. (See «DRIVE BELT REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615399-S40242248072014051000000) ).
6. Remove in the order indicated in the table.
7. Install in the reverse order of removal.
8. Refill the engine coolant. (See «ENGINE COOLANT REPLACEMENT [SKYACTIV-G 2.0]»(ref-615406-S03293741932014051000000) ).
9. Inspect for engine coolant leakage. (See «ENGINE COOLANT LEAKAGE INSPECTION [SKYACTIV-G 2.0]»(ref-615406-S41034731322014051000000) ). (Scheme 19): Identifying Water Pump Pulley, Water Pump Component, Gasket And O-Ring With Torque Specification

Water Pump Pulley Removal Note

Scheme 20

Scheme 21

1. Align the water pump pulley hole with the water pump hole as shown in the figure. (Scheme 20): Identifying Water Pump, Pulley And Hole
2. Insert an appropriate bolt (length 70 mm {2.8 in}) into the water pump hole shown in the figure and lock the water pump pulley against rotation.
3. Remove the bolt used for locking the water pump pulley against rotation. (Scheme 21): Removing Bolt For Locking Water Pump Pulley

Scheme 22

Scheme 23

1. Remove the water inlet pipe stay bolt.
2. Place a container under the engine to collect the engine coolant remaining in the engine. (Scheme 22): Identifying Water Inlet Pipe, Stay And Bolt
3. Slightly loosen the three water pump component bolts shown in the figure and collect the draining engine coolant into a container. CAUTION: Do not remove the water pump component completely at this time because the remaining approx. 2 L or less of engine coolant flowing in the engine will drain out.
4. After the engine coolant stops draining, remove the water pump component. (Scheme 23): Identifying Water Pump Component Bolts

O-ring Installation Note

1. Apply engine coolant to a new O-ring.
2. Install the O-ring to the water inlet pipe.

Water Pump Component Installation Note

Inserting New Water Pump Gasket Into Water Pump Groove. Scheme 24

Scheme 25

Scheme 26

1. Insert a new water pump gasket into the water pump groove.
2. Install the water pump.
3. Tighten the bolts in the order shown in the figure. Tightening torque 20-26 N.m {2.1-2.6 kgf.m, 15-19 ft.lbf}
4. Clean away the sealant adhering to the bolt hole on the cylinder block side of the water inlet pipe stay.
5. Remove the engine oil solenoid valve to secure a sufficient space for installing the water inlet pipe stay bolt. (See «ENGINE OIL SOLENOID VALVE REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615400-S34989674362014051000000) ).
6. Install a new water inlet pipe stay bolt. (Scheme 25): Identifying Water Pump Component Mounting Bolts Tightening Sequence (Scheme 26): Installing Water Inlet Pipe Stay Bolt With Torque Specifications
7. Install the engine oil solenoid valve. (See «ENGINE OIL SOLENOID VALVE REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615400-S34989674362014051000000) ).

Water Pump Pulley Installation Note

Scheme 27

1. Install the water pump pulley to the water pump and temporarily tighten the bolt
2. Align the water pump pulley hole with the water pump hole as shown in the figure. see scheme 27: Identifying Water Pump, Pulley And Hole
3. Insert an appropriate bolt (length 70 mm {2.8 in}) into the water pump hole shown in the figure and lock the water pump pulley against rotation.
4. Completely tighten the water pump pulley bolt to the specified torque. Tightening torque 8-11 N.m {82-112 kgf.cm, 71-97 in.lbf}
5. Remove the bolt used for locking the water pump pulley against rotation. (Scheme 27): Removing Bolt For Locking Water Pump Pulley

COOLING FAN MOTOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

Scheme 28

1. Disconnect the negative battery cable. (See «NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0]»(ref-615412-S04991947062014051000000) ).
2. Drain the engine coolant. (See «ENGINE COOLANT REPLACEMENT [SKYACTIV-G 2.0]»(ref-615406-S03293741932014051000000) ).
3. Remove the plug hole plate. (See «PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615399-S02010689542014051000000) ).
4. Remove the air cleaner, air hose and fresh air duct component. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615404-S24638618012014051000000) ).
5. Remove the coolant reserve tank. (See «COOLANT RESERVE TANK REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-615406-S37590576392014051000000) ).
6. Remove in the order indicated in the table.
7. Install in the reverse order of removal.
8. Refill the engine coolant. (See «ENGINE COOLANT REPLACEMENT [SKYACTIV-G 2.0]»(ref-615406-S03293741932014051000000) ).
9. Inspect for engine coolant leakage. (See «ENGINE COOLANT LEAKAGE INSPECTION [SKYACTIV-G 2.0]»(ref-615406-S41034731322014051000000) ). (Scheme 28): Exploded View Of Coolant Fan Motor With Torque Specifications

Scheme 29

1. Remove the bracket shown in the figure from the throttle body and set the upper radiator hose aside. (Scheme 29): Removing Bracket From Throttle Body With Torque Specifications

Scheme 30

1. Remove the cooling fan component from above the engine compartment. (Scheme 30): Identifying Cooling Fan Component

Scheme 31

1. Verify that the battery is fully charged. (See «BATTERY INSPECTION [SKYACTIV-G 2.0]»(ref-615412-S10301123762014051000000) ).
2. Disconnect the cooling fan motor connector (2 terminals).
3. Install a tester and battery to the cooling fan motor connector (2 terminals) as shown in the figure.
4. Verify that each cooling fan motors operate smoothly at the standard current. If there is any malfunction, replace the applicable part. Cooling fan motor No.1, No.2 standard current 4.5-8.5 A [12 V] (Scheme 31): Installing Tester And Battery To Cooling Fan Motor Connector