Description
Genuine Bosch heater flap actuator for Audi A6 C5, supplied as a used original unit. Primary OEM number 4B1820511A with Bosch reference 0132801127. This actuator is part of the HVAC air-distribution system and is designed to move an internal heater or blend flap with precise electric control.
Its job is to position the flap inside the heater box so the climate system can direct and regulate airflow through the cabin ducts. By moving the flap to the commanded position, it helps the system manage temperature balance and air routing for consistent interior comfort.
Common signs of a faulty unit include incorrect cabin temperature, air stuck on hot or cold, weak response when changing climate settings, clicking noises from behind the dashboard, or airflow not reaching the selected vents. Intermittent operation can also point to worn internal gears or an actuator motor that no longer travels smoothly.
This is a used original part removed from a vehicle and tested before sale. Match 4B1820511A and 0132801127 exactly before ordering. Professional installation is recommended, as access can involve dashboard or heater-box work, and calibration or adaptation 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/
