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    4. : What does code 18 indicate on the Opel Insignia?

What does code 18 indicate on the Opel Insignia?
Years 2017-2026

Answer

On the dashboard of Opel cars, error codes may appear that help us identify any malfunctions without resorting to computerized diagnosis. In this case, code 18 indicates that the left dipped beam bulb has blown.
Posted on: 4 June 2023 by ScegliAuto

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