Engine Radiator Coolant Overflow Reservoir Tank With Sensor & Cap Compatible With 1998-2001 Audi A4/A6 2003-2004 Audi RS6 1998-2005 VW Passat Replaces 8D0121403L 1J0121321B CPE0024P

[Function] The coolant reservoir is an important part of the cooling system, which can store excess coolant when the engine heats up and cools down. Keep the engine operating at a normal temperature
[Compatible With] 1998-2001 Audi A4;1998-2001 Audi A6;2003-2004 Audi RS6;1998-2005 Volkswagen Passat
[OE Number] 8D0121403L 1J0121321B CPE0024P Please check the part numbers whether it suits your vehicle before purchasing
[Smart Monitoring] With a sensor kettle can monitor the water temperature and water level in real time, when the water temperature is too high or the water level is too low, the sensor is able to send out an alarm to help the user to take timely measures to avoid engine overheating or damage
[Higher Quality] This Engine Radiator Coolant Overflow Reservoir Tank is made from premium materials to withstand the rigors of the engine compartment. Its rugged, corrosion-resistant design ensures long-term durability and minimizes the risk of leakage or failure

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