Expansion tank

The expansion tank in your vehicle plays a crucial role in compensating for the coolant's volume changes and maintaining pressure in the cooling system. As the engine heats up, the coolant expands, and the pressure within the system increases. The expansion tank accommodates these volume changes between a cold and hot engine, thanks to the air space at the top of the tank.

Why Change the Expansion Tank?

It's important to replace the expansion tank if it's damaged. A coolant leak can lead to engine overheating, which is a significant risk to your vehicle. Over time, like any part of your vehicle, the expansion tank ages and can accumulate deposits on its walls. This can make it hard to see the minimum and maximum coolant levels. In such cases, replacing the expansion tank is advisable to ensure you can easily monitor and maintain the correct coolant levels, helping to keep your engine running smoothly and efficiently.