Mini Countryman automatic transmission issue

I come to you today with a heavy heart and a troubled 2012 Mini Countryman. My trusty gasoline model is exhibiting some alarming symptoms related to what I believe is the automatic transmission. The engine warning light, or sometimes the transmission warning light, illuminates intermittently. An error is consistently stored in the error memory. Furthermore, the gearbox occasionally enters emergency mode, and I've noticed slippage and unclean shifts, accompanied by unsettling grinding noises during gear changes. My initial suspicion is a faulty transmission oil temperature sensor, possibly triggered by a low gearbox oil level. Has anyone experienced similar issues, and could offer guidance before I brace myself for what I anticipate will be an expensive transmission repair?

4 comment(s)

That sounds similar to a problem I had with my Mini Countryman. The automatic transmission was acting strangely, almost like it was hesitating between gears. Have you checked the transmission oil level? It might be worth a look, as low fluid can cause overheating problems and trigger those sensors. Think of it like a car's blood – if it's low, things start going wrong.

Thank you for your prompt response. That's a great analogy! How did you determine that the transmission oil level was the culprit? Did you notice any other symptoms besides the rough shifting? Was it a straightforward fix, or did it require specialized tools and expertise?

Yes, the rough shifting was the main symptom, but I also noticed a slight burning smell after longer drives, which I now suspect was the transmission overheating. I didn't attempt the repair myself. I took it to a trusted mechanic who diagnosed a faulty oil sensor and low transmission fluid. Unless you're experienced with automatic transmissions, I'd strongly recommend seeking professional help. These systems are quite complex, and you could potentially cause more damage.

I am eternally grateful for your advice. It was indeed the transmission oil temperature sensor acting up, most likely due to low oil level. The workshop confirmed it, and after replacing the sensor and topping up the transmission oil, the Countryman is driving like new again. The bill came to 365€. Thanks again!

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