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 2013 R56 Overheating, Fan Not Working

 Created by: DJElectricDaddy
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 Posted: Jan 19, 2024 01:26AM
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Member since:Jan 19, 2024
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Quote:
Originally Posted by DJElectricDaddy
BUMP Update: After pulling some of the headlights and front brace, and moving aside the coolant overflow tank and 'charger hose, I was able to access the fan connector. By adding 12v power I was able to confirm the fan motor and the fan resistor are actually functioning properly. I have both high-speed and low-speed fan behaviour. (See photo) So now the prime suspect is a godforsaken sensor somewhere; engine temp, radiator temp, water temp, or all bloody three >:( Any ideas how and where to test blossom word game? Please, so I can at worst go to the dealer well informed Cheers PS: It seems the stated functionality of double returns and image uploads is incorrect. These 'features' do not work. Chrome, Firefox Mac OS.
Since you have already confirmed that the fan motor and fan resistor are functioning properly, I guess that it is possible that the issue may be caused by a faulty sensor. One way to test the engine temperature sensor is to use a multimeter to measure the resistance values for different temperatures. Another way is to use a scan tool to access the sensor data directly.

 Posted: Jan 16, 2024 04:53AM
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CA
Quote:
Originally Posted by DJElectricDaddy


PS: It seems the stated functionality of double returns and image uploads is incorrect. These 'features' do not work. Chrome, Firefox Mac OS.
I'm not sure about Firefox on a Mac OS, but I have been using Firefox on various levels of Windows (currently Win 11) with no problem.
I use the "Styled" editor type in the message tool.

When it comes to photos, you need to make sure the file size of the image is reduced. Full size image files don't work. Easiest way is to drag and drop onto the big green dot, wait for it to process and a preview thumbnail will appear below the green dot. Better to have the reduced image on your computer's desktop (or in a folder) than in a cloud-based storage or remote server.

.

"Hang on a minute lads....I've got a great idea."

 Posted: Jan 15, 2024 12:09PM
 Edited:  Jan 15, 2024 12:23PM
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Last post: Jan 15, 2024
Member since:Aug 22, 2017
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BUMP

Update: After pulling some of the headlights and front brace, and moving aside the coolant overflow tank and 'charger hose, I was able to access the fan connector.

By adding 12v power I was able to confirm the fan motor and the fan resistor are actually functioning properly. I have both high-speed and low-speed fan behaviour. (See photo)

So now the prime suspect is a godforsaken sensor somewhere; engine temp, radiator temp, water temp, or all bloody three >:(

Any ideas how and where to test?

Please, so I can at worst go to the dealer well informed

Cheers

PS: It seems the stated functionality of double returns and image uploads is incorrect. These 'features' do not work. Chrome, Firefox Mac OS.

 Posted: Jan 10, 2024 10:39AM
Total posts: 25
Last post: Jan 15, 2024
Member since:Aug 22, 2017
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My wifes Mini overheated on her yesterday - the temp warning light came on, and then very quickly went red. She pulled over and let it cool down before returning home slowly. No steam, no boiling over, as she stopped quickly.

After taking a look under the hood I found the radiator fan is not running while the engine is on. After doing some research and reading I realised that there is no fan belt on these cars (my initial suspicion), and that the resistor that controls the fan speed often fails. I found a couple of videos that showed how to test the resistor but the engine layout did not match my 2013 so must have been an earlier model.

So I have a few questions before proceeding:

1. Where in the 2013 is the fan/resistor connector? So I can directly attach 12v power to test the fan motor or resistor.

2. What is the probability it is the a) fan motor, b) fan resistor, c) a fuse that is faulty. How to test for these?

3. Where can I buy a replacement resistor? I found the replacement fan in the store here if I need that.

Ever since she owned this car the high speed fan ran after the car was stopped. We assumed this was normal behaviour. I'm now learning this may not be the case, but have yet to find a definitive answer. My suspicion is that the low speed fan was not working under normal operation so the fan did not kick on until the engine reached a higher temp, and then had to stay on after it stopped. This points to a resistor failure. This has then added extra stress to the fan motor causing it to burn out. So I'm guessing I need to replace both parts, but would like to test to be certain.

I watched a video of a guy with way more tools and skills than I do pull the front end off a 2013 Mini and it looks like a non-trivial job. It looks like hours of huffing and puffing to replace a $20 part >:( I'm game to give most things a try but this might be one I have to take to a dealer.