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Originally Posted by Spetz
I have an E220 coupe, and today I noticed that the fan would not come on.
There is only 1 fan in front of the radiator/air con condenser, and one which is behind it all and is ran off of the engine. The one off of the engine was on, but the one in front of the radiator did not go on at all.
I had A/C blasting, outside temp was 28 degrees C, engine temp would go up over the 80 mark and peaked a bit lower than the next line above 80.
What could be wrong?
What would I do to diagnose the issue?
When should the fan be going on?
Any help is greatly appreciated
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Your engine is supposed to run just over the 80C hash mark. The auxiliary fan (in front of radiator) will only kick on when your engine temperature goes slightly over the 100C hash mark (~105). The fan attached to the engine runs all the time (obviously)
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btw, my car is right hand drive, so when you say passenger side which side do you mean?
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Well thankfully they don't flip the engine from LHD > RHD. It will be on the "drivers" side for you. It's a 17mm bolt in the side of the engine block.