E90 Bmw Radiator Fan
BMW E90 models have an advanced radiator fan control, which uses a Pulse-width-modulated or PWM signal to regulate the fan speed. This allows infinite speed regulation, unlike hi-low speed on older cars, and helps increase efficiency and fuel economy. All early models with gasoline engines have a high radiator fan failure rate.
The following article gives detailed instructions on replacing the electric cooling fan in an E90 3 series car. Even though we have used a 2011 BMW 335i to perform this repair, this article can be applied to any E90, E91 or E92 vehicle including the 325i, 328i and 330i with minor modifications. BMW E90 models utilize an electronic cooling fan integrated into the cooling fan shroud.
When repairing, the cooling fan and shroud are replaced as a unit. The cooling fan is responsible for maintaining proper engine coolant temperature and A/C cooling. When a BMW E90 cooling fan fails, the fan will not activate or only activate at high speed.
This part is listed by BMW as BMW part number 17112283621 (17-11-2-283-621) and is described as Genuine BMW Radiator Fan, 850W, for E90/E92/E93 M3 (2008, 2009, 2010. BMW E90 Engine Cooling Fans & Parts 1 2 3 Next Page Assembly Bracket Control Unit Hardware Shroud Switch Universal Electric Fan Sort By Return to Top. The BMW Mishimoto 12" Universal Curved Blade Electrical Fan is an ideal upgrade for enhancing cooling efficiency or addressing fitment issues with aftermarket components.
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