4G0121403G Coolant Tank for Audi A6/A7/S6/S7 12-18 | Fits Audi A6/A7/S6/S7/RS7 2012-2018; OE V10-8562/4G0121403AC; 1.64L, 20.3PSI cap, with sensor; Direct replacement

Vehicle FitmentCoolant overflow tank Compatible with Audi A6 2012-2018 // A6 Quattro 2012-2018 // A7 Quattro 2012-2018 // RS7 2014-2018 // S6 2013-2018 // S7 2013-2018. You can check your vehicle's suitability in the Amazon Suitability Filter in the upper left corner. For more information, please check the pictures or the item detail page.; OE Standard4G0121403G coolant expansion tank replaceable part OE No.: V10-8562, 4G0121403G, 4G0121403AC, 4G0121403D coolant tank. Our reservoir tank meet or exceed OE standards for form, fit and function, Ideal for automotive replacement engine coolant recovery kits. 100% brand new and high quality auto parts with OE grade durability for the ultimate comfortable driving experience.; Material & FunctionThe overflow tank reservoir is made of safe, high-quality PP plastic material, which can withstand excessive heat and vibration, and its function is to store excess coolant when needed, which helps to reduce oil dilution, fuel consumption, cylinder bore wear, and tailpipe emissions, and improves the efficiency of the heating system. The level of antifreeze inside can be seen directly without opening the radiator cap, avoiding damage to car parts.; How It Works Automobile expansion tank is commonly known as the antifreeze reservoir tank, water reservoir tank, is an important part of the cooling system. It contains coolant discharged from the engine cooling system. When the coolant is at a high temperature and expands through the radiator, or th