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What should I do if my BMW 3 Series is displaying 'check engine' warning?

I bought my BMW 3 Series used, and the check engine warning keeps coming on. I have no idea what it means or how to fix it. Can anyone offer some advice?

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J

The 'check engine' warning could be caused by a variety of issues, such as a faulty sensor or a misfiring engine. I recommend taking your car to a trusted mechanic to have it diagnosed and repaired as soon as possible. Ignoring the warning can lead to more serious and expensive problems down the road.

K

Before heading to a mechanic, you can try checking your gas cap to make sure it is tightly secured. A loose or damaged gas cap can trigger the 'check engine' warning. If that doesn't work, it's best to have a professional diagnose and fix the issue.

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