Genuine OEM Audi Air Conditioning Expansion Valve, part number 8W0816679. This valve plays a key role in the air conditioning system by precisely controlling the amount of refrigerant entering the evaporator. It is essential for maintaining optimal cooling performance and system efficiency. Made from robust metallic materials, this valve has dimensions of approximately 0.08m length, 0.036m width, and 0.063m height. Opting for a genuine OEM expansion valve ensures exact specifications and reliable operation, preventing common AC system issues.