Just a quick guide on how to replace the electric fan.
The bearings on mine had gone, when spinning by hand it made a pretty bad noise and it would only spin about 1/2 a revolution per flick with your hand and it was showing an error on the ODB reader.
Cost: £35 - used fan with no cowling from ebay
Car: 2009 E89 3.0i Manual
Difficulty: Easy
Time: less than 1hr with tea breaks
Tools: T25,T30, 8mm socket or spanner & a flat blade screwdriver
Remove the x4 8mm screws, lift up the plastic cover and wiggle it free at the joint circled.
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Unscrew the x6 T30 screws
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Tilt the brace backwards (like opening a bonnet), then unclip the cable with the blue circles and set the metal brace aside. Unclip the pipe marked yellow and push it forward. Unplug the electric connection on the right in red. Unscrew the single T25 screw at the top left of the fan cowl (screw head faces the engine)
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Now the only thing holding the fan housing in place is a plastic clip at the top right of the fan housing, push this and wiggle the fan housing until you get it past the clip.
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Now you just need to wiggle the fan/cowling up and out of the engine bay.
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Now just reverse the steps with your new fan and you are good to go.
