Nissens radiators are submitted to corrosion, vibration, pressure impulse, thermal expansion, and thermal performance tests. Nissens radiators are manufactured and tested to OE specifications. This part generally fits BMW vehicles and includes models such as X3 with the trims of 2.5i Sport Utility 4-Door,3.0i Sport Utilit y 4-Door,3.0si Sport Utility 4-Door,xDrive30i Sport Utility 4-Door.