Description:

Replacement for: 2004-2007 For 525i,2006-2007 For 525xi,2008-2010 For 528i,2009-2010 For 528i xDrive,2008 For 528xi,2004-2007 For 530i,2006-2007 For 530xi,2008-2010 For 535i,2009-2010 For 535i xDrive,2008 For 535xi,2004-2005 For 545i,2006-2010 For 550i,2004-2005 For 645Ci,2006-2010 For 650i. Strong Point: Controls the flow of coolant through the radiator regulating heat dissipation and allows engine to reach operating temperature as quickly as possible. Easy Installation: Our radiator cooling expansion tank is easy to install no need additional hardware.. Features: The coolant remaining in the radiator of the tank will flow back to the expansion tank to prevent over pressure in the tank. Conversely when the water level in the tank is too low the tank can also replenish the water level..