Description
This Bosch heater flap actuator is a genuine Audi HVAC air distribution motor for Audi A6 C5 models. The primary OEM number is 4B1820511K, with Bosch reference 0132801158. It is the electric actuator that moves an internal heater or ventilation flap inside the climate control housing to direct airflow where the system commands it.
In normal operation, this actuator responds to the climate control system and adjusts flap position for cabin temperature management and air routing. It helps regulate how warm or cool air is blended and where it is delivered, supporting stable comfort, demisting performance, and proper heater box operation.
Common signs of a faulty unit include incorrect air direction, uneven cabin temperature, clicking from behind the dashboard, slow flap movement, or heat and ventilation settings that do not respond correctly. A worn or sticking actuator can also cause the flap to stop short or fail to move through its full range.
This is a used original part, removed from a vehicle and tested before sale. Match 4B1820511K and 0132801158 before ordering. Professional installation is recommended, and calibration, adaptation, or climate control system setup may be required after fitting.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/
