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How to troubleshoot a suspected electrical issue in a BMW 5 Series?

My BMW 5 Series seems to be having some electrical issues, such as random warning lights flashing and difficulty starting. How can I identify and fix the problem?

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Answers (3)

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First, check your battery and alternator to make sure they are functioning properly. If they seem good, then it could be a faulty fuse or relay. Make sure to check all of them and replace any that are burned out.

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Another common issue is a faulty starter. You can try tapping on it with a hammer to see if that helps start the car. If not, it may need to be replaced.

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If none of those solutions work, it's best to take your BMW to a certified mechanic for a diagnostic test. They will be able to pinpoint the exact issue and give you the best course of action.

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