Coolant Radiator Reservoir Tank 17117573781 Coolant Overflow Expansion Bottle with Cap and Sensor for BMW X3 2004-2008

Coolant Radiator Reservoir Tank 17117573781 Coolant Overflow Expansion Bottle with Cap and Sensor for BMW X3 2004-2008
The coolant reservoir is attached to the radiator and the engine with hoses and is an important component of the cooling system, which holds the excess coolant fluid used to cool the engine. When a coolant expansion tank has any issues it can lead to issues that: Constantly low on coolant, coolant leaks, engine overheating. This is a non-OEM product, accessory only! Fit for BMW X3 2004-2008, for BMW 328i 323i 1999-2000, for BMW 330xi 325xi 325i 330i 330Ci 2001-2005, for BMW X5 325Ci 2001-2006, for BMW 323Ci 328Ci 2000. How to Replace: Turn off your car and allow your engine to cool down completely. Remove the bolts and the reservoir. Wrap a cloth around the hose before disconnecting it and allow the remaining coolant to flow back into the drain pan. Take out the damaged reservoir and drain the coolant off. Reinstall the coolant hose to the radiator and tighten the clamp. Connect the other end of the coolant hose to the new coolant reservoir and tighten the mounting bolts. Refill the tank with a new coolant and run the engine to check if functions well.