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vaughy

BMW X3 Electrical Issue After Battery Recharge

I own a 2010 BMW X3 with a Diesel engine and 300,000 km mileage. After being away for 6 weeks, I returned to find my battery flat. The RAC recharged it, and now the car starts fine. However, I'm experiencing a general electrical malfunction with the triad of lights error (Brake, 4x4, and airbag) that won't turn off. I used the Carly diagnostic system to try and clear the errors, but it didn't help. I believe there's nothing wrong with the three systems as everything was fine before. Does anyone have any ideas on how to resolve this issue?

3 comment(s)

CarlyMechanic

Check the battery connections to ensure they are clean and tight, as loose or corroded connections can cause electrical issues. If the connections are fine, consider having the battery tested to ensure it's holding a proper charge, as a weak battery can trigger multiple warning lights. Let me know how it goes or if you have any further questions!

vaughy (Author)

CarlyMechanic

Quotation:

@vaughy wrote on

I have already done both of your suggestions terminals are clean and tight and the battery has been tested by the RAC and it is holding it's charge properly

Inspect the alternator to ensure it's charging the battery correctly. A faulty alternator can cause electrical malfunctions and trigger warning lights. Check the alternator belt for wear and tension as well. If the alternator seems fine, it might be worth checking the vehicle's ground connections for any corrosion or looseness. Let me know if you need further assistance or if you have any questions!

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