General description HEATER CONTROL VALVE AIR CON COOLANT UNIT is designed for specific Audi A6 models, ensuring optimal performance and compatibility. Technical specifications Brand new and high quality Reference OE/OEM Numbers: 4F1959617A, 4F1959617B, 4F1959617, 4F1 959 617 A, 4F1 959 617 B, 4F1 959 617 Warranty: 2 Years Quantity: 1x Heater Control Valve Compatibility and accessories For Audi A6 C6 (4F2) 2004-2011 For Audi A6 C6 Avant (4F5) 2005-2011 For Audi A6 Allroad C6 (4FH) 2006-2011 Installation Professional installation is recommended as instructions are not included. Usage This heater control valve is essential for regulating the coolant flow in the air conditioning system of compatible Audi A6 models.