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Nissan Sentra B18 (2020-2025) Service Manual: Radiator

Exploded View

Exploded View

1.

Reservoir tank cap

2.

Reservoir tank

3.

Clamp

4.

Reservoir tank hose A

5.

Reservoir tank hose B

6.

Air guide (RH)

7.

Clip

8.

Air guide (upper)

9.

Air guide (LH)

10.

Mounting rubber (upper)

11.

Radiator assembly

12.

Mounting rubber (lower)

13.

Radiator drain plug

14.

Clamp

15.

Radiator hose (upper)

16.

Clamp

17.

Bracket

18.

Radiator hose (lower)

19.

Cooling fan assembly

20.

Cooling fan control module

21.

Clamp

22.

Water hose

A.

To water outlet. Refer to Exploded View.

B.

To water inlet. Refer to Exploded View.

: Front

       

: Indicates that the part is connected at points with the same symbol in the actual Nissan Sentra vehicle.

Removal and Installation

Removal and Installation

REMOVAL

Warning:

  • Do not remove radiator cap or reservoir tank cap when engine is hot. Serious burns may occur from high-pressure engine coolant escaping from engine cooling system.

  • When removing the radiator cap or reservoir tank cap, wrap a thick cloth around the cap and slowly turn it a quarter turn to allow built-up pressure to escape. Then carefully remove the cap by turning it all the way.

Note:

When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spilling.

Disconnect the battery. Refer to Battery Disconnect.

Remove the cooling fan assembly. Refer to Removal and Installation.

Remove the front bumper fascia. Refer to Removal and Installation.

Remove clips and remove the air guide (LH), air guide (RH) and air guide (upper).

Release pawls and reposition condenser. Refer to Exploded View.

Remove the hood lock bolts and reposition the hood lock. Refer to Exploded View.

Remove the radiator hose (upper) from the radiator.

Remove the reservoir tank hose B from the radiator.

Remove radiator pin locator and remove the radiator.

CAUTION:

Be careful to not damage radiator core or condenser core when removing.

INSTALLATION

Installation is in the reverse order of removal.

Radiator Hose

  • When inserting the radiator hose (1), insert the hose until it contacts the stopper (2), when a stopper is present. When a stopper is not present, insert hose by the specified dimension (C).

A.

Radiator side

B.

Engine side

C.

33 mm (1.30 in)

  • Refer to the following table when installing hose clamps.

    Radiator hose

    Hose end

    Direction of paint mark

    Orientation of hose clamp tabs*

    Radiator hose (upper)

    Radiator side

    Nissan Sentra Vehicle left

    Vehicle left

    Engine side

    Nissan Sentra Vehicle left

    Vehicle left

    Radiator hose (lower)

    Radiator side

    Nissan Sentra Vehicle right

    Vehicle right

    Engine side

    Nissan Sentra Vehicle front

    Vehicle front

  • The orientation of the hose clamp tabs must be within the specified range (B) of the specified position (A).

    Range (B)

    : 30°

  • When installing hose clamp (1), make sure that the hose clamp is installed within the specified dimension (A) from the end of the hose (2).

    Dimension (A)

    : 3 - 7 mm (0.12 - 0.28 in)

Inspection

Inspection

INSPECTION AFTER INSTALLATION

After installation, check engine coolant systems for leaks. Refer to Inspection.

Start and warm up the engine. Check and make sure there are no engine coolant leaks.

    Cooling Fan
    Exploded View Exploded View 1. Reservoir tank cap 2. Reservoir tank 3. Clamp 4. Reservoir tank hose A 5. Reservoir tank hose B 6. Air guide (RH) 7. Clip 8. Air guide (upper) 9. ...

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