Description
This electric auxiliary heater element is a genuine Audi HVAC component for the Audi A6 C5, supplied under OEM number 4B1819011. It is an original cabin heating system part designed to support fast interior warm-up and stable heater performance in cold conditions.
Its job is to provide supplemental heat within the climate control system, helping the cabin reach a comfortable temperature sooner while supporting airflow warmth before full engine heat is available. This type of PTC-style heater element works as an electrical heating aid within the heater assembly.
Common signs of a faulty unit include weak cabin heat during cold starts, delayed warm air from the vents, intermittent heater support, or fault codes related to the auxiliary heating system. In some cases, demisting performance can also suffer when the heater element no longer operates correctly.
This is a used original part, removed from a vehicle and tested before sale. Please match OEM number 4B1819011 before ordering. Professional installation is recommended, and adaptation or system checks may be required depending on the vehicle’s HVAC setup.
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/









