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Where to Find the OBD Port on the Mercedes A-Class W177

Model: Mercedes Classe A W177 - Years: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Part: Dashboard

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Video tutorial

If you don't know where the OBD port is located on your Mercedes A-Class W177 (model year 2018-2023), don't worry because this guide will provide you with all the necessary information. First, reach the driver's seat and ensure the vehicle is turned off. Next, shift your attention to the lower area of the dashboard and locate the OBD port in question.

It is easily distinguishable due to its red color. At this point, you can connect any professional diagnostic tool to troubleshoot or identify errors detected by the control unit.


Updated on 30 July 2026 by ScegliAuto


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