Description
This blower motor resistor is a genuine Volkswagen HVAC component for VW Passat B6 and Golf 5 models. The primary OEM number is 3C0 907 521, making it the correct reference for this original cabin heater and ventilation control part.
Its job is to regulate electrical current to the interior blower motor, allowing the heating and air conditioning fan to operate at the selected speed. By controlling blower output smoothly, it helps maintain stable cabin airflow for demisting, heating and everyday climate comfort.
Common signs of a faulty unit include the cabin fan working only on certain speeds, no blower response at lower settings, intermittent airflow, or a fan that cuts in and out without warning. In some cases, weak or inconsistent ventilation can point to a failing resistor rather than the blower motor itself.
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 related wiring, blower condition or control-system faults should be checked during 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/
