BMW X5 E70 M Sport Coolant Expansion Tank 10617211 (2007-2013)This part comes with 30 days warranty, The BMW X5 E70 M Sport Coolant Expansion Tank 10617211 is a genuine BMW part designed for the specific model years 2007 2013. This high quality expansion tank is essential for regulating the coolant system's pressure and preventing overheating. With the manufacturer part number 10617211, you can be confident that you are getting the correct and reliable component for your vehicle. Upgrade your BMW X5 with this M