Bmw E90 Radiator Fan Replacement

Fixes bmw e90 models have an advanced radiator fan control which uses a pulse width modulated or pwm signal to regulate the fan speed.

Bmw e90 radiator fan replacement.

Radiator fan switch replacement location bmw e90 e91 e92 e93 if you need to replace the radiator fan switch on bmw e91 e90 e92 e93 we will explain in this. 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. Bmw e90 models utilize an electronic cooling fan integrated into the cooling fan shroud.

One of the most common failure points on aging bmw s is the cooling system. When a bmw e90 cooling fan fails the fan will not activate or only activate at high speed. 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.

The cap must be removed for the bmw e90 radiator to drain properly. Remove protective plastic belly pan skid plate from the underside of your vehicle.