Bmw E90 Radiator Fan Test

Mine broke which caused overheating of the car.

Bmw e90 radiator fan test.

Search this thread 03 18 2008 08 57 am 1. The engine coolant sensor or a separate engine temperature switch is used to monitor engine temperature. The cooling fan is responsible for maintaining proper engine coolant temperature and a c cooling. It is especially noticeable on higher mileage cars or vehicles that have sustained a front end impact somewhere along their.

So a engine cooling fan failure. The engine cooling fan only runs when needed to help cool the engine. A bmw e90 cooling fan replacement may be necessary if it is not turning on when the radiator temperature exceeds normal operating levels. The fan is mounted between the radiator and the engine and is the main engine cooling fan.

Bmw 3 series e90 e92 forum bmw e90 e92 e93 3 series general forums regional forums uk e90 how does radiator fan work. There is no engine driven mechanical fan. Bmw e90 models utilize an electronic cooling fan integrated into the cooling fan shroud. Because it can allow the engine to overheat.

While waiting for my car to cool after doing a radiator flush i decided to google how to test temp and fan on a e90 put key in press start button once dash lights are on press the reset odometer button and hold till it brings up the hidden menu display the first menu should look like this. In this video i show you how to test to see if your fan switch is working. The water pump circulates the coolant and keeps the system pressurized. On a bmw this is a mix of monoethylene glycol and distilled water.

On all bmw models up through the late 90s the auxiliary or main fan is controlled by one or two thermostatic switches that are mounted into the radiator side or bottom tanks. Bmw cooling system fundamentals the engine hoses radiator and expansion tank are filled with coolant mixture. Feel free to comment and ask quest. One of the most common failure points on aging bmw s is the cooling system.