Regarding difficulty of replacement: It's generally considered a difficult and time-consuming job, rated as one of the more challenging DIY repairs on this vehicle. This is because of:
* Dashboard disassembly: A significant portion of the dashboard must be removed to access the heater core. This involves numerous screws, clips, and potentially fragile plastic components.
* Limited workspace: Working in the cramped space behind the dashboard is challenging.
* Potential for leaks: The heater core is a delicate component, and damage during removal or installation can lead to coolant leaks.
* Special tools: While not always strictly necessary, certain tools can make the job easier and less prone to damage.
Unless you have significant mechanical experience, access to a repair manual, and patience, it's strongly recommended to have a professional mechanic replace the heater core. The cost of labor can be significant, but the potential for additional damage or mistakes during a DIY repair often outweighs the savings.
