FIt For Audi A6 C6 Allroad Avant 4F1959617A 4F1959617A/C Coolant Heater Control Valve 4F1959617B Made with durable materials, ensuring the product remains fully functional under normal use conditions. Control valve the installation is simple, direct replacement, no modification is required, convenient for using, save your efforts. The solenoid heater water valve plays a crucial role in regulating coolant flow, maintaining optimal engine and enhancing overall vehicle efficiency. Control valve is compact and powerful, sensitive and reliable, ensuring its stable performance. Good quality not only can provide a safer guarantee for your life, but also good materials can increase product life., Manufacturer: NADCFN