paulalang4

Mini Cabrio Electrical Problems

I am experiencing some electrical issues with my 2017 Mini Cabrio. The speedometer displays an error message, and the error memory has stored related faults. The engine is weak when starting, and I'm observing general electrical malfunctions. I suspect a battery issue, specifically that the auxiliary battery isn't charging. Could this be causing the problems, and what steps should I consider?

A 2017 Mini Cabrio was experiencing electrical issues, including error messages on the speedometer, weak engine starts, and general malfunctions. The suspected cause was a faulty auxiliary battery not charging properly. It was advised to replace the battery, as a simple recharge might not resolve the underlying issue. After replacing the auxiliary battery, the problems were resolved, confirming the initial suspicion.

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4 comment(s)

A Mini Cabrio exhibiting those symptoms certainly points to potential auxiliary power issues. The error message and starting problems suggest low voltage. Has there been any recent work or modifications to the car electronics?

Thank you for your response. No, there have been no recent modifications or repairs. I'm concerned about the battery replacement cost. Could a simple recharge address the voltage drop, or is a battery replacement inevitable based on the symptoms?

Given the age and symptoms described, a battery replacement is likely necessary. While a recharge may temporarily improve the situation, the underlying problem of a failing battery will persist, and you'll likely experience the same issues again soon. The battery likely cannot hold charge anymore. Considering the potential for further car electronics malfunctions due to low voltage, I would advise getting it checked by a workshop.

Just wanted to update the thread. I followed the advice and took the Mini to a service. The diagnosis confirmed the auxiliary battery was indeed faulty. After the battery replacement, the error messages disappeared and the car electronics are working normally again. The voltage drop is gone. Thank you for the advice.

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MINI

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CABRIO