17137647283 Coolant Expansion Tank For BMW

This is a BMW Coolant Expansion Tank (also known as a Coolant Reservoir or Overflow Bottle). It holds excess engine coolant as it expands from heat and includes a built-in coolant level sensor.

Vehicle Compatibility:

• 5 Series (F10 / F07 GT): 2011–2016 535i, 535i xDrive, 535d, and ActiveHybrid 5
• 6 Series (F12 / F13 / F06 Gran Coupe): 2012–2019 640i and 640i xDrive
• 7 Series (F01 / F02): 2011–2015 740i, 740Li, 740Ld, and ActiveHybrid 7