E39-Cooling

If your thermostat housing is leaking, it is most likely this gasket.  This fits in the groove of your thermostat housing which sandwiches between ...

Replace your old, cracked, or bulging lower radiator hose with this high quality OE replacement. Replaces BMW PN 11531705224 Fitment: 525i 2001-20...

Replace your old, cracked, or bulging upper radiator hose with this high quality OE replacement. Replaces BMW PN 11531705223 Fitment: 525i 2001-20...

Your OEM mechanical fan is a crucial part to your BMWs coolant system.  When the fan fails, it will prevent the fan from spinning which can cause o...

The coolant expansion tank on the M5x engines are a crucial part to your cooling system.  Unfortunately BMW made these out of plastic and over time...

Is your BMW constantly showing low coolant even though your expansion tank is full?  Your coolant level sensor has most likely failed.  Replace you...

Your OEM mechanical fan clutch is a crucial part to your BMWs coolant system.  When the fan clutch fails, it will prevent the fan from spinning whi...