Genuine OEM Volkswagen Headlamp Fan, part number 1T3941052. This fan cools the LED components within the headlight assembly to prevent overheating and ensure longevity. It is located at position 13 in the headlight assembly. The fan has a weight of 0.034 kg. Genuine OEM fans are precisely balanced and calibrated to ensure vibration-free operation and optimal cooling performance for the sensitive LED components.