BMWs use an external oil cooler to regulate the temperature of engine oil and prevent a breakdown in viscosity and lubrication characteristics. If yours has suffered damage or developed a slight leak, make sure to replace it and keep the engine oil where it is supposed to be. Keeping this system properly serviced will significantly improve performance and increase engine life.
This is an OEM Nissens oil cooler that helps keep oil temperatures down to enhance its protection and lubrication. If your oil cooler is leaking, coolant and oil could begin to mix, result in numerous issues. Replace your oil cooler with a brand new unit from OEM Nissens to ensure factory-exact performance and fitment.
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