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Electronic actuator from an Audi A6 (4B, C5) 1997–2005, Bosch OEM part 4B1820511K / 4B1820511. This unit controls flap positioning within the heater and ventilation system, regulating airflow direction and temperature blend. Verify connector integrity and compatibility with your donor vehicle's climate control setup before ordering.
Electronic actuator from an Audi A6 (4B, C5) 1997–2005, Bosch OEM part 4B1820511K / 4B1820511. This unit controls flap positioning within the heater and ventilation system, regulating airflow direction and temperature blend. Verify connector integrity and compatibility with your donor vehicle's climate control setup before ordering.
