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What causes the engine malfunction light to turn on in a Ford S-Max?

I recently purchased a used Ford S-Max and the engine malfunction light has turned on. What could be causing this and how do I fix it?

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The engine malfunction light could be signaling a number of potential issues, such as a faulty oxygen sensor, a loose gas cap, or a failing catalytic converter. If the light is flashing, it is important to address the issue immediately by getting your car diagnosed by a mechanic.

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Check your car's manual for the specific meaning of the engine malfunction light for your Ford S-Max model. It could be indicating something as simple as a scheduled maintenance check or as serious as an overheating engine. It's best to err on the side of caution and get it checked out by a professional.