Nissan Armada 2025-2026 Service and Repair Manual: ENGINE COOLANT : Inspection
LEVEL
Check if the reservoir tank engine coolant level is within the “MIN” to “MAX” when the engine is cool.
: MAX 
: MIN Adjust the engine coolant level if necessary.
WARNING:
Never remove reservoir tank cap when engine is hot.
CAUTION:
Refill Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent in its quality mixed with water (distilled or demineralized). Refer to Anti-Freeze Coolant Mixture Ratio.
LEAKAGE
NOTE:
The sealing surface between the water pump body and the shaft is lubricated by engine coolant.
A small amount of engine coolant is discharged from the lubrication surface during normal operation and may be found as a coolant residue on the plug, bleed hole, or bottom of water pump assembly.
In case of coolant residue is found on the water pump assembly, check the water pump leakage. Refer to WATER PUMP : Inspection.
Open the reservoir tank cap.
: Radiator cap 
: Reservoir tank cap To check for leakage, apply pressure to the cooling system with the radiator cap tester (commercial service tool) (A) and radiator cap tester adapter (commercial service tool) (B).
Testing pressure : Refer to RADIATOR : Service Data. 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.
CAUTION:
Higher test pressure than specified may cause radiator damage.
NOTE:In a case that engine coolant decreases, fill radiator with engine coolant.
If anything is found, repair or replace damaged parts.
Engine Coolant
...
ENGINE COOLANT : Draining
WARNING:
WARNING:
To avoid being scalded, never change engine coolant when the engine is hot.
Wrap a thick cloth around reservoir tank cap and carefully remove reservoir tank cap.
First, turn reservoi ...
Other materials:
Shrinking Methods
(1) ELECTRIC WELDING MACHINE
The body panel is connected to the negative power supply terminal and the tip is connected to the positive terminal. Then, an electric current is supplied to heat the panel. The shrinking principle is the same as that of gas welding. This method features no hammering and ...
Removal and Installation
CAUTION:
Never damage the body panel.
REMOVAL
CAUTION:
Remove luggage floor box. Refer to Removal and Installation.
Release luggage rear plate portion of back door weather-strip. Refer to Removal and Installation.
Remove luggage rear plate mask.Apply protective tape (A) on luggage rear plate to prot ...
Exploded View
Drain plug Drain plug washer Oil pan (lower) Comply with the installation procedure when tightening. Refer to Removal and Installation. : N·m (kg-m, ft-lb) : N·m (kg-m, in-lb) : Always replace after every disassembly. : Sealing point ...
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