Genuine OEM Volkswagen Auxiliary Heater Dosing Pump, part number 3Q0201607D. This pump is responsible for precisely metering and supplying fuel from the fuel tank to the auxiliary heater. Located near the fuel tank, it ensures consistent fuel flow for efficient heater operation. Weighing approximately 0.637 kg, it is a robust component. Genuine OEM ensures accurate fuel delivery and system compatibility for reliable auxiliary heating performance.