Radiator Coolant Expansion Header Tank Bottle for BMW for MINI R55 R56 R57 R58 R59 R60 R61 for ONE for Cooper S for JCW 17137539267 Engine Coolant Recovery Expansion Tank

The expansion tank, commonly known as the antifreeze reservoir or water tank, is an important component of the cooling system. It stores the coolant discharged from the engine cooling system. When the coolant temperature is high, it expands in the radiator, or when there is excess coolant, the pressure increases and releases. After the engine cools down, the excess coolant flows back to the radiator from the vehicle's expansion tank.

• 👍Coolant reservoir stores high-temperature coolant to prevent engine overheating and ensure smooth engine operation.
• 👍This engine radiator coolant overflow reservoir is made of high-quality materials and can withstand the harsh environment of the engine compartment. Its robust, durable, and corrosion-resistant design ensures a long service life and minimizes the risk of leaks or malfunctions.
• 👍Automotive expansion tank: Also known as an antifreeze reservoir or tank, it is an important component of the cooling system. It stores coolant discharged from the engine. When the engine warms up, the coolant expands and releases excess pressure. As the engine cools down, the coolant flows back to the radiator to maintain normal engine operation.
• 👍Coolant expansion tank: Made with high-quality automotive-grade materials and precision nuts, it offers excellent sealing performance and effectively prevents coolant leaks. Each product undergoes rigorous testing for reliable performance.
• 👍Coolant reservoir function: Specially designed to withstand the pressure of high temperatures and vibrations, preventing cracking or leaks. Reduces coolant loss, prevents continuous air ingress, and prevents oxidation and corrosion of parts.