The coolant reserve tank stores excess coolant from the radiator. As your engine heats up, coolant needs space to expand and move. This tank collects overflow to prevent leaks and helps maintain the right pressure in your cooling system.
How Does It Work?
When the engine temperature rises, coolant moves from the radiator into the reserve tank. As the engine cools, the coolant flows back into the system. This cycle keeps the radiator filled and the engine at a safe operating temperature, stopping overheating.
What Happens If This Part Is Broken?
Loss of coolant; engine may overheat
Potential for engine damage
Air can enter cooling system and reduce efficiency
