1. Fresh Air Vents: There are two fresh air vents located on the dashboard, one on each side. These vents allow outside air to enter the vehicle.
2. Defroster Vents: The Beetle also has two dedicated defroster vents located at the base of the windshield. These vents direct airflow upwards onto the windshield to help clear frost and ice.
3. Heating Core: The heating core is a heat exchanger located inside the vehicle's heating system. Hot coolant from the engine flows through the heating core, transferring heat to its metal fins.
4. Blower Motor: The blower motor is responsible for circulating air through the ventilation system. When the defroster setting is selected, the blower motor draws outside air from the fresh air vents and passes it over the heating core.
5. Heated Airflow: The heated air from the heating core is then directed through the defroster vents onto the windshield. This warm airflow helps melt frost and ice from the windshield, improving visibility.
6. Control Lever: The defroster setting is controlled by a lever on the dashboard. The lever allows you to adjust the airflow direction between the defroster vents and the other dashboard vents.
7. Temperature Control: In addition to the defroster setting, the 1970 Volkswagen Beetle also has a temperature control lever. This lever regulates the amount of hot coolant flowing through the heating core, allowing you to adjust the temperature of the defrosted air.
When the defroster setting is engaged, the blower motor will circulate heated air from the heating core through the defroster vents, effectively clearing frost and ice from the windshield.
