Nissan Juke F15. Manual - part 189

OVERHEATING CAUSE ANALYSIS

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Malfunction 
other than 
the cooling 
system

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Engine overload

High-load driving

High engine speed with no 
load

Driving in low gear for a 
long period of time

Extreme continuous high-
speed driving

Power train system mal-
function

—

Size of installed wheel or 
tire

Dragging of brakes

Ignition timing

Obstruction of outside air 
inflow

Blocked bumper opening

—

—

Blocked radiator grille

Installation of bumper cov-
er

Blocked by mud or foreign 
substance

Clogged radiator fins

—

Clogged condenser fan

Obstruction of outside air 
inflow path

Blocked due to installation 
of fog lamps

Symptom

Inspection item

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< PERIODIC MAINTENANCE >

[MR EXCEPT FOR NISMO RS MODELS]

ENGINE COOLANT

PERIODIC MAINTENANCE

ENGINE COOLANT

Inspection

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LEVEL 

• Check that the reservoir tank engine coolant level is within the

“MIN” to “MAX” when the engine is cool.

• Adjust the engine coolant level if necessary.

CAUTION:

Refill Genuine NISSAN Long Life Antifreeze/Coolant (blue) or

equivalent in its quality mixed with water (distilled or deminer-

alized). Refer to 

MA-11, "Fluids and Lubricants"

.

LEAKAGE

• To check for leakage, apply pressure to the cooling system with the

radiator cap tester (commercial service tool) (A) and the radiator

cap tester adapter (commercial service tool) (B).

WARNING:

Never remove radiator cap when engine is hot. Serious burns

may occur from high-pressure engine coolant escaping from

engine cooling system.

CAUTION:

Higher test pressure than specified may cause radiator dam-

age.

NOTE:

If a case that engine coolant decreases, replenish radiator with engine coolant.

• If anything is found, repair or replace damaged parts.

Draining and Filling 

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CAUTION:

• Never apply additive agent like anti-leakage sealant. Doing so may cause coolant passage clog.

• When refilling use Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent in its quality

mixed with water (distilled or demineralized). Refer to 

MA-11, "Fluids and Lubricants"

.

• Never dilute using water.

DRAINING

WARNING:

Never open the radiator cap or drain plug when the engine is hot. Hot liquid may spray out, causing

serious injury.

CAUTION:

• Never spill coolant on the drive belt while working.

• Be sure to perform this operation when coolant temperature is cold.
1. Turn the ignition switch ON, wait for 10 seconds or more, and then turn it OFF again.
2. Connect drain hose.

A :  MAX
B :  MIN

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Testing pressure: Refer to 

CO-58, "Radiator"

.

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ENGINE COOLANT

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• Use a general-purpose hose with the dimensions show in the

figure.

3. Open radiator drain plug (A) at the bottom of radiator, and then

remove radiator cap. 

CAUTION:

Perform this step when engine is cold.

• When draining all of engine coolant in the system, open water

drain plugs on cylinder block. Refer to 

EM-287, "Disassembly

and Assembly"

.

4. Remove reservoir tank if necessary, and drain engine coolant and clean reservoir tank before installing.

Refer to 

CO-46, "Exploded View"

.

5. Check drained engine coolant for contaminants such as rust, corrosion or discoloration. If contaminated,

flush the engine cooling system. Refer to 

CO-44, "Flushing"

.

6. Disconnect drain hose.

REFILLING

1. Install reservoir tank. Refer to 

CO-46, "Exploded View"

.

2. Install the radiator drain plug.

• Replace the drain plug O-ring with a new one.

CAUTION:

Be sure to clean drain plug and install with new O-ring.

• If water drain plugs on cylinder block are removed, close and tighten them. Refer to 

EM-287, "Disas-

sembly and Assembly"

.

3. Check that each hose clamp is firmly tightened.
4. Remove the cowl top extension. Refer to 

EXT-30, "Removal and Installation"

.

5. Perform the following procedure for draining the air from piping.

 If using CONSULT

1. Turn the ignition switch ON again and use CONSULT “WORK SUPPORT” mode to perform “ENGINE

COOLANT BYPASS VALVE”. Refer to 

EC-667, "CONSULT Function"

.

CAUTION:

Never start engine.

NOTE:

CONSULT can be used to open the bypass valve on the multi-way control valve.

A

: 

φ 8  mm (0.31 in)

B

: 300 mm (11.81 in)

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Radiator drain plug

: Refer to 

CO-46, "Exploded View"

.

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[MR EXCEPT FOR NISMO RS MODELS]

ENGINE COOLANT

2. Separate the hose clamp (1) and heater hose (2) at the

position shown in the figure (

), and hold the end of the

hose at the same height.

3. Fill with coolant at a speed of 3 L/min or less (like pouring

water with a kettle) until it fills the radiator cap (1) neck.

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If coolant comes out from the heater hose when filling with

coolant, connect the heater hose and continue filling with

coolant.

CAUTION:

•

Filling with coolant at a high speed may allow air to

mix with coolant. Be sure to fill with coolant slowly,

observing the above speed.

•

Never spill coolant on any electrical equipment (such

as the alternator) during the operation.

 When not using CONSULT

1. Separate the hose clamp (1) and heater hose (2) at the

position as shown in the figure (

), and hold the end of the

hose at the same height.

2. Fill with coolant at a speed of 3 L/min or less (like pouring

water with a kettle) until it fills the radiator cap (1) neck.

-

If coolant comes out from the heater hose while adding

coolant, connect the heater hose and continue adding cool-

ant.

CAUTION:

•

Filling with coolant at a high speed may allow air to

mix with coolant. Be sure to fill with coolant slowly,

observing the above speed.

•

Never spill coolant on any electrical equipment (such

as the alternator) during the operation.

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