OEM HVAC Blower Motor Control Module Resistor 4B0820521 For A6 Allroad S6 This HVAC blower motor control module resistor is designed for use with A6 Allroad S6 models, matching the specifications for fit and function.With OEM 4B0820521, it serves as a direct replacement component for the vehicle's climate control system. Constructed from metal and plastic, the module is built to withstand regular operational stresses.It measures 15 cm in length, 9 cm in width, and 6 cm in height, allowing for compact installation within the vehicle's dashboard assembly. The resistor regulates the blower motor speed, supporting consistent airflow across all fan settings.It contributes to effective heating and cooling performance under various operating conditions.Designed with environmental standards in mind, it meets ISO9001 certification requirements and features low volatile organic compound emissions. This control module stable electrical performance and integrates into the existing HVAC system, supporting dependable of the cabin air circulation. Compatibility Disclaimer: This is not an OEM item.Mentioned brands/models are used strictly for fitment illustration.