1. Disconnect Battery:
Disconnect the negative battery terminal to avoid any electrical issues while working.
2. Exterior Steps:
a) Remove the two bolts that hold the hood release cable to the firewall.
b) Remove the five bolts that hold the grille to the front of the car.
c) Gently pull the grille out to reach the heater hoses located behind it.
d) Loosen the hose clamps using pliers and remove the two heater hoses.
3. Interior Steps:
a) Remove the instrument cluster by unscrewing the mounting bolts and pulling it out gently. Disconnect any electrical connectors.
b) Remove the center console by unscrewing the bolts holding it in place and carefully taking it out.
c) Remove the glove compartment by pressing the release buttons on the sides and pulling it out.
4. Dashboard Removal:
a) Remove the screws holding the dashboard in place.
b) Detach any electrical connectors you encounter while removing the dashboard.
c) Unbolt and remove the steering column. Disconnect any electrical connectors.
d) Carefully remove the dashboard, being cautious of any wires or connectors still attached. This may involve removing the radio and HVAC controls.
5. Heater Core Replacement:
a) Locate the heater core, usually inside a plastic housing behind the dashboard.
b) Disconnect any hoses or pipes connected to the heater core.
c) Remove the old heater core by gently pulling it out of its housing.
d) Install the new heater core and reconnect the hoses or pipes.
6. Reinstallation:
a) Reinstall the dashboard by reversing the steps you took to remove it.
b) Reconnect all electrical connectors and any removed components, such as the radio and HVAC controls.
c) Reattach the steering column.
d) Put back the center console and glove compartment.
e) Install the grille and reconnect the hood release cable.
7. Refill Coolant:
Refill the coolant system as per the vehicle's specifications. Run the engine for a short while and check for any leaks.
8. Reconnect Battery:
Reconnect the negative battery terminal to restore power.
Remember, this is a general guide, and the specific steps may vary slightly based on your vehicle's model and trim level. It's recommended to consult a repair manual specific to your vehicle for detailed instructions and safety precautions.
