1. OEM Compatibility Our coolant expansion tank is designed to seamlessly fit a wide range of CMkII and MKIII models from 2010 to 2020. 2. Efficient Cooling System The coolant reservoir plays a key role in regulating your engine's temperature. It efficiently dissipates heat from the coolant, preventing overheating and ensuring performance during drives or operation. Experience peace of mind knowing this critical component helps maintain your engine's integrity while promoting longevity and reliability in your vehicle's cooling system. 3. Enhanced Durability Made from materials, this coolant expansion tank is built to withstand extreme temperature fluctuations. Unlike other reservoirs that may crack over time, ours retains structural integrity even under demanding conditions. Enjoy extended use with confidence, knowing you have a reliable part that won't age prematurely, delivering greater value for your investment. 4. Effective Design This replacement features a sturdy cap for a secure seal, effectively preventing coolant loss through evaporation. The innovative design ensures consistent system pressure, optimizing cooling efficiency and enhancing engine performance. Trust our product to keep your vehicle running smoothly under any driving conditions.