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post #1 of 7 (permalink) Old Jun 1st, 2019, 07:14 AM Thread Starter
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Fan running on

Hi all,

Recently bought my wife a 2011 Cooper SD all4 countryman, we both love it! However, she has said it has done it a couple of times and this morning I witnessed it, after a short journey (maybe 1 mile) the fan runs on, the car hasn't warmed up, this morning I opened the bonnet and checked and the coolant wasn't hot. It doesn't do this everytime. Does anyone know if there's a reason for this, or do I maybe have a faulty temperature sensor?
Thanks

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post #2 of 7 (permalink) Old Jun 1st, 2019, 07:47 AM
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I don’t know what it is but i think it is normal as it used to happen with my Cooper D Convertible and my Cooper SD Roadster, I thought it was strange that it did it after a really short journey. I parked next to a Cooper D in a park and ride car park and the fan was running on that and the girl that owned it was worried and called her dad when she got on the bus. I assured her it was normal as my car did that as well.

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post #3 of 7 (permalink) Old Jun 1st, 2019, 09:03 AM
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Originally Posted by Ford306 View Post
Hi all,

Recently bought my wife a 2011 Cooper SD all4 countryman, we both love it! However, she has said it has done it a couple of times and this morning I witnessed it, after a short journey (maybe 1 mile) the fan runs on, the car hasn't warmed up, this morning I opened the bonnet and checked and the coolant wasn't hot. It doesn't do this everytime. Does anyone know if there's a reason for this, or do I maybe have a faulty temperature sensor?
Thanks
need to scan it see what codes are lurking without a eml light as some do, and also to check not running to hot all the time

Albert Einstein: The definition of insanity is doing the same thing over and over and expecting different results.
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post #4 of 7 (permalink) Old Jun 1st, 2019, 09:11 AM Thread Starter
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I have scanned with a cheap code scanner and didn't show any codes, also used a Delphi which I used to reset the battery when I fitted a new one and that only showed a code for comfort access rear Ariel, nothing else. I guess when it does it again I can use the scanner to check engine temp and see what that says, maybe it is just something it does sometimes, I wondered if it does it if I try has started a regent of the dpf, but thought it would wait for a longer run and when it had got up to temperature!
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post #5 of 7 (permalink) Old Jun 1st, 2019, 05:27 PM
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Originally Posted by Ford306 View Post
I have scanned with a cheap code scanner and didn't show any codes, also used a Delphi which I used to reset the battery when I fitted a new one and that only showed a code for comfort access rear Ariel, nothing else. I guess when it does it again I can use the scanner to check engine temp and see what that says, maybe it is just something it does sometimes, I wondered if it does it if I try has started a regent of the dpf, but thought it would wait for a longer run and when it had got up to temperature!
maybe switching it off half way through a regen would make the ecu want to cool it down fast for sure,

Albert Einstein: The definition of insanity is doing the same thing over and over and expecting different results.
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post #6 of 7 (permalink) Old Jun 3rd, 2019, 08:21 AM
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Air con or cooling fan?
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post #7 of 7 (permalink) Old Jun 3rd, 2019, 06:55 PM
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FORD306,
Your car is trying to perform a "re-gen". The fans run to remove excess heat (under bonnet) whilst engine management attempts to clean the DPF. If you notice the fans running when you stop after a short journey it's a good indicator to do a quick motorway journey. When you get home the fans should not be running and this is also a good indicator the "re-gen" has completed.

You should notice an improvement in performance too.
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