Nissan Armada 2025-2026 Service and Repair Manual: Radiator

Exploded View

	Radiator drain cock		O-ring		Mounting rubber (upper)
	Collar		Mounting rubber (lower)		Engine coolant temperature sensor 2
	Radiator		Clamp		Radiator hose (lower)
	Clamp		Reservoir tank tube		Reservoir tank bracket
	Reservoir tank		Reservoir tank support bracket		Reservoir tank cap
	Radiator hose (upper)		Radiator pipe assembly		Radiator cap
	Reservoir tank hose
	To water pipe 2. Refer to Exploded View.		To multi-way control valve. Refer to MULTI-WAY CONTROL VALVE : Exploded View.		To water pipe 2. Refer to Exploded View.
	: N·m (kg-m, in-lb)
	: Always replace after every disassembly.
, Indicates that the part is connected at points with same symbol in actual vehicle.

Removal & Installation

WARNING:

• Jacking up or lift up the vehicle may the vehicle height to go down which cause a personal injury and/or damage to the air suspension component parts. Refer to Precaution for when Jacking and Lifting Up the vehicle with Electronic Air Suspension System.

REMOVAL

WARNING:

Never remove radiator cap and reservoir tank cap when engine is hot. Serious burns could occur from high-pressure engine coolant escaping from engine cooling system. Wrap a thick cloth around the cap. Slowly turn it a quarter of a turn to release built-up pressure. Carefully remove radiator cap and reservoir tank 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.

Remove front under cover using a power tool. Refer to Removal and Installation.

Drain engine coolant. Refer to ENGINE COOLANT : Draining.

CAUTION:

• Perform this step when the engine is cold.

• Never spill engine coolant on drive belt.

Discharge refrigerant from A/C circuit. Refer to Recycle Refrigerant.

Remove front bumper fascia.

• OFF ROAD MODELS: Refer to Removal and Installation.

• CITY MODELS: Refer to Removal and Installation.

Remove cooling fan assembly. Refer to ENGINE COOLING FAN : Removal & Installation.

Remove mounting bolt of the radiator pipe assembly .

Remove radiator hose lower .

: vehicle front

Disconnect engine coolant temperature sensor 2 harness connector .

Remove radiator air guide RH and radiator air guide LH .

Disconnect refrigerant pressure sensor harness connector .

Remove condenser outlet pipe and condenser inlet pipe. Refer to Exploded View.

Remove radiator and condenser as a set.

CAUTION:

Never damage or scratch radiator core when removing.

Remove condenser from the radiator.

CAUTION:

Be careful not to damage radiator core.

INSTALLATION

Note the following, and install in the reverse order of removal.

CAUTION:

• Do not reuse O-rings.

• Use genuine mounting bolts for the cooling fan assembly and strictly observe the tightening torque. (Breakage prevention for radiator)

NOTE:

• Insert the radiator hose all the way to the stopper or by 33 mm (1.30 in) (hose without a stopper).

  

  Radiator side

  Engine side

• Refer to the following table when installing the hose clamps.

  Hose location	Hose end	Direction of paint mark	Direction of hose clamp tabs : vehicle upper
  Radiator hose (upper)	Radiator side	vehicle left
  	Engine side	vehicle upper left
  Radiator hose (lower)	Radiator side	vehicle left
  	Engine side	vehicle lower right

• The direction of the hose clamp tabs must be within ±15° of the indicated position .

  

• When installing hose clamp , check that the distance “A” between the end of the radiator hose paint mark and the hose clamp is within the standard range.

  

  Dimension “A”

  : 3.0 - 7.0 mm (0.12 - 0.28 in)

RADIATOR : Inspection (Removal & Installation)

INSPECTION AFTER INSTALLATION

• Check for leakage of engine coolant using the radiator cap tester adapter (commercial service tool) and the radiator cap tester (commercial service tool). Refer to ENGINE COOLANT : Inspection.

• Start and warm up the engine. Visually check that there is no leakage of engine coolant.