Removal and Installation
1. Release the lock knob at the back of the Intelligent Key and remove the mechanical key.
2. Insert a suitable tool (A) wrapped with a cloth into the slit of the corner and twist it to separate the upper part from the lower part.
CAUTION:

3. Replace the battery with new one.
Battery replacement :Coin-type lithium battery (CR2025)

4. Align the tips of the upper and lower parts, and then push them together until it is securely closed.
CAUTION:
WITHOUT INTELLIGENT KEY SYSTEM
Engine cooling system
The engine cooling system is filled at the factory
with a pre-diluted mixture of 50% Genuine
NISSAN Long Life Antifreeze/Coolant (blue) and
50% water to provide year-round antifreeze and
coolant protection. The antifreeze solution contains
rust and corrosion inhibitors. Additional engine
cooli ...
Water pump
Exploded View
1. Gasket 2. Water pump 3. Water pump pulley
Removal and Installation
REMOVAL
CAUTION:
Do not remove the radiator cap when the engine is hot. Serious burns
could occur from highpressure
engine coolant escaping from the radiator. Wrap a thick cloth around the
radiator cap. ...