5Q0121407D Engine Coolant Reservoir Tank with Sensor & Cap Compatible with 2015 - 2016 Audi A3 L4 1.8L 2.0L, S3 2.0L | Volkswagen Golf L4 1.4L 1.8L 2.0L, GTI L4 2.0L

What Does a Coolant Reservoir Do? - A coolant reservoir is a small plastic tank that is connected to the radiator of a car's cooling system. Its primary function is to provide a space for excess coolant to expand and contract as the engine heats up and cools down. Keep the engine operating at a normal temperature.
Part Numbers - 5Q0121407D, 5Q0121407F. This radiator surge tank matches the fit and function of the original part. This is NOT a genuine part, it's an aftermarket replacement part.
Compatible with Select Audi & Volkswagen Models - This radiator overflow tank is compatible with 2015 - 2016 Audi A3 L4 1.4L, 2015 - 2016 Audi A3 L4 1.8L, 2015 - 2016 Audi A3 L4 2.0L, 2015 - 2016 Audi S3 L4 2.0L, 2016 Volkswagen Golf L4 1.4L, 2015 - 2016 Volkswagen Golf L4 1.8L, 2015 Volkswagen Golf L4 2.0L, 2015 - 2016 Volkswagen GTI L4 2.0L. Please check the description or enter Year / Make / Model on Amazon's Fitment Filter system to confirm your compatibility.
Replacement Instruction - Turn off and cool down the car, disconnect the drain line, remove the retaining bolts and swap in the new reservoir tank. Professional installation is highly recommended.
Durable and Long Lasting - This Coolant Recovery Tank is manufactured from quality materials, durable and long lasting. It is thoroughly tested to ensure optimum fit and performance on specific vehicle applications.

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