Description
This Bosch heater flap actuator is an original Audi HVAC air distribution motor for Audi A6 C5 models. The primary OEM number is 4B1820511D, with Bosch reference 0132801125. It is designed to operate an internal heater or climate flap within the dashboard air box, helping the system direct airflow correctly.
Its job is to move the flap to the required position when the climate control system commands changes in air routing or cabin temperature balance. A properly working actuator helps the heating and air conditioning system respond smoothly, so the cabin receives the intended airflow through the correct vents.
Common signs of a faulty unit include incorrect airflow direction, uneven cabin temperature, clicking from behind the dashboard, slow flap movement, or a climate system that does not respond properly to control changes. These symptoms often appear when the internal motor or position mechanism begins to wear.
This is a used original part, removed from a vehicle and tested before sale. Match the exact OEM number before ordering. Professional installation is recommended, and coding, programming or adaptation may be required where applicable 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/









