What might trigger the check engine indicator on my 2007 Mercedes S550 to illuminate?

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If you're driving your 2007 Mercedes S550 and the check engine light illuminates on the dashboard, the first step is to pull over to a safe location promptly. Once stopped, utilize an OBD II scan tool to retrieve the error code stored in the ECU responsible for triggering the light. The reasons for the light turning on vary widely, ranging from a minor issue like a loose gas cap to a more serious ECU malfunction. Without using a scan tool, it's difficult to determine the exact cause.

What might trigger the check engine indicator on my 2007 Mercedes S550 to illuminate?

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