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Stock Problems/Issues Discussions related to warranty related issues and repairs, or other problems with the OEM parts and software for MINI Clubman (R55), Cooper and Cooper S(R56), and Cabrio (R57).

Please help identifying this coolant part.

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Old Oct 23, 2025 | 09:15 PM
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Please help identifying this coolant part.
Can you help identify this leaking part in my coolant system of my 2012 Base Mini Cooper? Not sure what sensor it is (assuming it’s a sensor).
Thanks,

Rob

 
Last edited by BCRob; Oct 23, 2025 at 09:34 PM. Reason: Need more
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Old Oct 24, 2025 | 03:50 AM
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That is your coolant temp sensor. Unfortunately, there was a service bulletin back in the day that replaced it with a coolant hose and thermostat revision so they are no longer available. You can try pulling it and replacing the seal on it. But, the only other option would be to replace the hose and thermostat with the newer version, which isn’t a trivial task…
 
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Old Oct 24, 2025 | 03:52 AM
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Thank you :-)
 
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Old Oct 24, 2025 | 08:25 AM
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Yep

https://www.northamericanmotoring.co...is-sensor.html

https://www.northamericanmotoring.co...ntryman-s.html
 
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Old Oct 24, 2025 | 08:40 AM
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Thank you. I’ll try the black sealant first… much appreciated.
 
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Old Oct 28, 2025 | 01:10 PM
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Ok you are welcome.
 
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