WARNING:
Never remove the cooling system cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system.
Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap. Wrap a thick cloth around it and slowly turn it counterclockwise 2.5 turns. Step back while the pressure escapes.
When you are sure all the pressure is gone, turn the cap using the cloth, and remove it.
1. Remove the aerodynamic under cover No.2..
2. Drain the engine coolant..
3. Loosen the radiator drain plug completely.
4. Using a flathead screwdriver or equivalent, pry out the radiator drain plug.

CAUTION:
Do not apply excessive force to the flathead screwdriver or equivalent as doing so can damage the drain bore. Slowly and carefully pry out the radiator drain plug when removing it.
5. Install a new radiator drain plug with a new O-ring.
1.2—1.5 N·m {13—15 kgf·cm, 11—13 in·lbf}
6. Refill the engine coolant..
7. Inspect for engine coolant leakage..
Fuel Gauge Sender Unit Removal/Installation
Radiator Removal/Installation [Mzr 2.0, Mzr 2.5]Clock Spring Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the driver-side air bag module..
3. Remove the steering wheel..
4. Remove the column cover.
5. Remove the connectors.
6. Remove the tab direction of the arrow shown in the figure.
7. Remove the screws.
8. Remove the clock spring. ...
Refrigerant Pressure Sensor Inspection [Manual Air Conditioner]
MZR 2.0, MZR 2.5
1. Install the manifold gauge.
2. Verify the high-pressure side reading of the manifold gauge.
3. Measure the terminal voltage of the climate control unit.
1G,1H and 2J
4. Verify that below graph as measure the terminal voltage 2J.
5. Follow the climate control ...
Fan Switch Inspection [Manual Air Conditioner]
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Upper panel.
b. Shift lever knob (MTX).
c. Selector lever knob (ATX).
d. Shift panel.
e. Side wall.
f. Console.
g. Front scuff plate.
h. Front side trim.
i. Dashboard under cover.
j. Glove compartment. ...