1、Applicable Model: The fan control module unit is for A6 C6. Please confirm whether it is consistent with the product you want before buying to avoid unnecessary return. 2、OE Number: The part numbers for reference are 4F0121003F, 4F0121003J, 4F0121003K, 4F0121207J, 4F0121207K, 4F0959455B, 4F0959455C, 4F0959455D, 4F0959455E, 4F0959455J, 4F0959455K, 4F0910501A, 4F0910501B. 3、Precise Control:The engine cooling fan control module effectively controls the start and speed of radiator fans to ensure normal engine working temperature and heat dissipation performance. 4、Premium Materials: Produced with superior electronic components and circuit design, the cooling fan control module ensures stable and reliable control performance for long lasting use. 5、Energy Saving: The cooling fan control unit module automatically adjusts the speed of cooling fans based on temperature changes for intelligent control, reducing energy consumption and saving power. 6、Easy Installation: Compatible with original car parts, the engine cooling fan control unit module requires no additional modifications or adjustments for a convenient and quick installation process.