Nissan Leaf. Instruction — part 843
COOLANT
HCO-11
< PERIODIC MAINTENANCE >
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PERIODIC MAINTENANCE
COOLANT
Inspection
INFOID:0000000010119128
COOLANT AMOUNT INSPECTION
• When coolant temperature is low (about 50
°C or less), confirm that
the coolant level of the reservoir tank is in the range from MIN to
MAX.
• Adjust level if it is outside the range.
CAUTION:
• Refill Genuine NISSAN Long Life Antifreeze/Coolant (blue)
or equivalent in its quality mixed with water (distilled or
demineralized). Refer to
(United States and Canada) or
MA-17, "FOR MEXICO : Fluids and Lubri-
• Confirm that the reservoir tank cap is tightened.
LEAKAGE CHECK
• Apply pressure to the cooling system using radiator cap tester (A)
(commercial service tool). Check system for coolant leakage.
CAUTION:
• Remove the degas tank cap when coolant temperature is
low.
• Perform the inspection with the radiator filled with water.
• Use hose adapter (B) (commercial service tool) between
radiator cap tester (A) (commercial service tool) and the
filler neck so that the degas tank filler neck is not deformed.
• Be sure to observe the maximum pressure standards. Otherwise, radiator may be damaged.
• If there is a malfunction, repair and replace applicable part.
Draining
INFOID:0000000010119129
CAUTION:
• Be sure to drain when coolant temperature is cold.
• This should be performed so that coolant does not come in contact with surrounding parts.
1. Remove Li-ion battery undercover.
2. Remove radiator drain plug , and drain coolant.
3. Remove reservoir tank and drain the coolant as per the following procedure.
1. Remove radiator upper grille cover.
2. Remove water hose (reservoir tank side) and reservoir tank mounting bolts.
: MAX
: MIN
JPBIA0102ZZ
Maximum pressure
: Refer to
.
PBIC5121J
: Vehicle front
JPCIA0342ZZ
HCO-12
< PERIODIC MAINTENANCE >
COOLANT
Refilling
INFOID:0000000010119130
REFILLING
CAUTION:
• Do not reuse O-rings.
• Do not put additive such as waterleak preventive, since it may cause cooling waterway clogging.
• When refilling use Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent in its quality
mixed with water (distilled or demineralized). Refer to
MA-16, "FOR USA AND CANADA : Fluids and
(United States and Canada) or
MA-17, "FOR MEXICO : Fluids and Lubricants"
(Mexico).
1. Install reservoir tank if removed and radiator drain plug.
CAUTION:
Be sure to clean drain plug and install with new O-ring.
2. Check that each hose clamp has been firmly tightened.
3. Refill reservoir tank to “MAX” level line with engine coolant.
4. Install reservoir tank cap.
5. Set the vehicle to READY and operate the electric water pump.
6. If reservoir tank fluid level drops, set the vehicle in READY OFF state and fill with coolant to the “MAX” line
of the reservoir tank.
7. Repeat from Step 4 to 7 until the reservoir tank fluid level stops dropping.
8. Operate the electrically-controlled water pump for approximately 10 minutes with the vehicle set in
READY state, and check that the reservoir tank fluid level does not drop.
9. If reservoir tank fluid level drops, repeat from Step 4 to 7.
CHECK WATER FLOW SOUND
CAUTION:
Prior to check, be sure to close windows, doors, and hood, and turn off audio system and other elec-
trical loads.
1. Set the vehicle to READY and operate the electric water pump.
2. Operate the electric water pump for 1 minute.
3. Check if water flow sound can be heard from the back of the compartment (near the on board charger).
4. If water flow sound is heard, operate the electric water pump until it cannot be heard.
5. When water flow sound cannot be heard, fill the reservoir tank up to "MAX" line.
CAUTION:
• Insufficient coolant may cause low power or stop of vehicle due to insufficient cooling of the traction
motor inverter. Be sure to bleed air thoroughly.
• Never operate the electric water pump without coolant.
Radiator drain plug
: Refer to
.
: MAX
: MIN
JPBIA0102ZZ
RESERVOIR TANK CAP
HCO-13
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RESERVOIR TANK CAP
Inspection
INFOID:0000000010119131
• Check valve seat of reservoir tank cap.
- Check that valve seat is swollen to the extent that the edge of the
plunger cannot be seen when watching it vertically from the top.
- Check that valve seat has no soil and damage.
• Pull negative-pressure valve to open it, and that it close completely
when released.
- Check that there is no dirt or damage on the valve seat of reservoir
tank cap negative-pressure valve.
- Check that there are no unusualness in the opening and closing
conditions of negative-pressure valve.
• Check reservoir tank cap relief pressure.
- When connecting reservoir tank cap to the radiator cap tester
(commercial service tool) (A) and the radiator cap tester adapter
(commercial service tool) (B), apply engine coolant to the cap seal
surface.
• Replace reservoir tank cap if there is an unusualness related to the above three.
: Metal plunger
JPBIA0108ZZ
SMA967B
Standard
: Refer to
PBIC5122J
HCO-14
< REMOVAL AND INSTALLATION >
RADIATOR
REMOVAL AND INSTALLATION
RADIATOR
Exploded View
INFOID:0000000010119132
Reservoir tank hose
Reservoir tank cap
Reservoir tank
Chipping guard
Collar
Bushing
Radiator
Clamp
Radiator hose (lower)
Water hose
Pump bracket
Mount rubber
Electric water pump
Radiator hose (upper rear)
Water hose adapter
Radiator hose (upper front)
Water hose
Engine coolant temperature sensor
Gasket
Drain plug
O-ring
Arrow view
To PDM (Power Delivery Module)
To traction motor
: N·m (kg-m, in-lb)
: Always replace after every disassembly
JPCIA0343GB
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