Brand new and never used, directly replaces the old one and easy installation.
Fitment: for BMW 525i 2004-2007, for BMW 525xi 2006-2007, for BMW 528i 2008-2011, for BMW 528xi 2008, for BMW 530i 2004-2007, for BMW 530xi 2006-2007, for BMW 545i 2004-2005, for BMW 550i 2006-2011, for BMW 645Ci 2004-2005, for BMW 745i 2002-2005, for BMW 745Li 2002-2005, for BMW 750i 2006-2008, for BMW 750Li 2006-2008, for BMW 760i 2004-2006, for BMW 760Li 2003-2008
OE Number: 17217559962, 17127507982
Good Replacement: The engine's thermostat regulates the temperature of the engine by controlling coolant flow. A bad or failing thermostat: high temperature reading and engine overheating, low temperature reading and underheated engine, temperature changing erratically, coolant leaks around thermostat housing or under the vehicle. How to fine thermostat: You can find your car's thermostat by starting at the upper radiator hose and following it to where it enters the top of the engine.
