603-253 Engine Coolant Reservoir Expansion Tank with Cap for AUDI A3 Q3 TT RS3/ VW Jetta Passat Golf Beetle CC Eos Tiguan Rabbit

OE: 603-253.
Replace OE: 1K0121407A.
Package Included: 1 coolant reservoir + 1 surge cap.
(Notice: instruction is not included. Recommended you install under the guidance of professionals.
)^^Function: The coolant tank contains coolant fluid that is discharged from the cooling system attached to the engine. Pressure builds up and released when the coolant is hot and expanding through the radiator and when the engine cools down, the excess fluid flows back into the radiator from the coolant tank of your vehicle. If you are experiencing leaks, low level of coolant and overheating engine then you may have a problem with your coolant reservoir tank.
^^Compatible with: For Audi A3 06-16Q3 15-18RS3 17-19TT 08-19. For Volkswagen Beetle 12-19CC 09-17EOS 07-19Golf 10-14 GTI 06-14Jetta 05-19Passat 93-20 Rabbit 06-09 Tiguan 09-20. Please check your vehicle in the Amazon Fitment Filter System in the top left corner. Compatibility information provided is for reference only. Please make sure to match the exact part numbers between this part and the part that you are replacing.
^^High-quality: The coolant reservoir expansion recovery tank with cap is made from high quality plastic materials can withstand excessive heat and vibration, light and durable, translucent, you can directly see the liquid level of the antifreeze inside, without opening the radiator cover. While this is not a genuine OEM part, it is a direct replacement and good value.