Nissan Cube. Manual - part 150

CO-12

< PERIODIC MAINTENANCE >

RADIATOR

RADIATOR

RADIATOR CAP

RADIATOR CAP : Inspection

INFOID:0000000009950398

• Check valve seat (A) of radiator 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 radiator

cap negative-pressure valve. 

- Check that there are no unusualness in the opening and closing

conditions of negative-pressure valve.

• Check radiator cap relief pressure.

- When connecting radiator cap to the radiator cap tester (commer-

cial service tool) (A) and the radiator cap tester adapter (commer-
cial service tool) (B), apply engine coolant to the cap seal surface. 

• Replace radiator cap if there is an unusualness related to the above three.

CAUTION:

When installing radiator cap, thoroughly wipe out the radiator filler neck to remove any waxy residue
or foreign material.

RADIATOR

RADIATOR : Inspection

INFOID:0000000009950399

Check radiator for mud or clogging. If necessary, clean radiator as follows.

CAUTION:

• Be careful not to bend or damage radiator fins.
• When radiator is cleaned without removal, remove all surrounding parts such as radiator cooling fan

assembly and horns. Then tape harness and harness connectors to prevent water from entering.

1.

Apply water by hose to the back side of the radiator core vertically downward.

2.

Apply water again to all radiator core surfaces once per minute.

3.

Stop washing if any stains no longer flow out from radiator.

B : Metal plunger

JPBIA0108ZZ

SMA967B

Standard and Limit

: Refer to 

CO-25, "Radiator"

.

PBIC5122J

RADIATOR

CO-13

< PERIODIC MAINTENANCE >

C

D

E

F

G

H

I

J

K

L

M

A

CO

N

P

O

4.

Blow air into the back side of radiator core vertically downward.
• Use compressed air lower than 490 kPa (5 kg/cm

2

, 71 psi) and keep distance more than 30 cm (11.81

in). 

5.

Blow air again into all the radiator core surfaces once per minute until no water sprays out.

CO-14

< REMOVAL AND INSTALLATION >

RADIATOR

REMOVAL AND INSTALLATION

RADIATOR

Exploded View

INFOID:0000000009950400

Removal and Installation

INFOID:0000000009950401

REMOVAL

WARNING:

• Never remove radiator cap when engine is hot. Serious burns may occur from high-pressure engine

coolant escaping from engine cooling system. 

• Wrap a thick cloth around the radiator cap. Slowly turn it a quarter of a turn to release built-up pres-

sure. Then turn it all the way.

NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
1.

Drain engine coolant from radiator. Refer to 

CO-8, "Draining"

.

1.

Reservoir tank cap

2.

Reservoir tank

3.

Radiator hose (upper)

4.

Clamp

5.

Mounting rubber (upper)

6.

Radiator cap

7.

Reservoir tank hose

8.

Radiator

9.

Mounting rubber (lower)

10. O-ring

11.

Drain plug

12. Radiator hose (lower)

13. Cooling fan assembly

A.

To water outlet

B.

To water inlet

: Always replace after every disassembly.

: N·m (kg-m, in-lb)

JPBIA2883GB

RADIATOR

CO-15

< REMOVAL AND INSTALLATION >

C

D

E

F

G

H

I

J

K

L

M

A

CO

N

P

O

CAUTION:

• Perform this step when the engine is cold.
• Never spill engine coolant on drive belt.

2.

Remove air duct (inlet) and resonator assembly. Refer to 

EM-24, "Exploded View"

.

3.

Remove reservoir tank as follows:

a.

Disconnect reservoir tank hose.

b.

Release the tab (A) in the direction shown by the arrow (

).

c.

Lift up and remove the reservoir tank with tab released.

4.

Remove radiator hose (upper and lower).

5.

Disconnect harness connector from fan motor, and move harness aside.

6.

Remove cooling fan assembly.

CAUTION:

Be careful not to damage or scratch the radiator core.

7.

Remove the following parts.
• Front grille assembly: Refer to 

EXT-17, "Exploded View"

.

• Front bumper fascia assembly: Refer to 

EXT-11, "Exploded View"

.

• Front combination lamp assembly (RH and LH): Refer to 

EXL-191, "Exploded View"

.

8.

Remove radiator core support (upper). Refer to 

DLK-186, "Exploded View"

 (WITH INTELLIGENT KEY

STSTEM) or 

DLK-339, "Exploded View"

 (WITHOUT INTELLIGENT KEY STSTEM).

9.

Pull up and remove the radiator assembly (1).

CAUTION:

Be careful not to damage radiator core and condenser
assembly core.

INSTALLATION

CAUTION:

Do not reuse O-rings.
Note the following, and install in the reverse order of removal.
NOTE:
• Insert the radiator hose (1) all the way to the stopper (2) or by 33 mm (1.30 in) (hose without a stopper).

PBIC3800E

2

: Condenser assembly

: Vehicle front

JPBIA2857ZZ

JPBIA4294GB