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Nissan Sentra B18 (2020-2025) Service Manual: Removal and Installation

Oil Cooler

Exploded View

Exploded View

CVT Models

1.

Clamp

2.

Water hose A

3.

Oil filter

4.

Connector bolt

5.

Water hose B

6.

Heater thermostat housing

7.

Oil cooler

8.

Water hose C

A.

Refer to Removal and Installation.

B.

To CVT oil warmer. Refer to Exploded View.

C.

Refer to Removal and Installation.

    
M/T Models

1.

Clamp

2.

Water hose A

3.

Oil filter

4.

Connector bolt

5.

Oil cooler

6.

Water hose B

A.

Refer to Removal and Installation.

B.

Refer to Removal and Installation.

    

Removal and Installation

Removal and Installation

REMOVAL

Warning:

Be careful not to get burn yourself, as engine oil and engine coolant may be hot.

Note:

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

Drain engine coolant from radiator and cylinder block. Refer to Draining. Note:

Perform this step when removing water hoses.

Remove the oil filter. Refer to Removal and Installation.

For CVT models, disconnect water hose B and water hose C from the oil cooler.

  • When removing oil cooler only, pinch water hoses near oil cooler to prevent engine coolant from spilling out.

  • Remaining engine coolant in piping will come out. Use a tray to collect it.

CAUTION:

Perform this step when the engine is cold.

For M/T models, disconnect water hose A and water hose B from the oil cooler.

  • When removing oil cooler only, pinch water hoses near oil cooler to prevent engine coolant from spilling out.

  • Remaining engine coolant in piping will come out. Use a tray to collect it.

CAUTION:

Perform this step when the engine is cold.

Loosen the connector bolt and remove the connector bolt and oil cooler.

INSTALLATION

Installation is the reverse order of removal.

  • Tighten the connector bolt (2) after aligning the stopper (A) on the oil pan (upper) side with protrusion of oil cooler (1).

    : Engine front

Inspection

Inspection

INSPECTION AFTER REMOVAL

Oil Cooler

Check oil cooler for cracks. Check oil cooler for clogging by blowing through engine coolant inlet. If necessary, replace oil cooler.

INSPECTION AFTER INSTALLATION

Check the engine oil level and the engine coolant level and add engine oil and engine coolant. Refer to Inspection (ENGINE OIL) and Inspection (ENGINE COOLANT).

Start the engine, and check that there is no leakage of engine oil or engine coolant.

Stop the engine and wait for 10 minutes.

Check the engine oil level and the engine coolant level again. Refer to Inspection (ENGINE OIL) and Inspection (ENGINE COOLANT).

Oil Pump

Exploded View

Exploded View

Oil pump is integrated in the oil pan (upper). Refer to Exploded View.

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