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How to Reset the Service Light on the Mercedes A-Class W177

Model: Mercedes Classe A - Years: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Part: Service warning light

Video tutorial

In this video, see how to reset the service light on the Mercedes A-Class W177: first, turn on the ignition. Then, go to the button panel on the left side of the steering wheel until you select the trip option.

Press and hold the center button for more than five seconds; scroll left to "workshop" and enter, then select "workshop plus." Press the ignition button again. This will display "full service" and confirm.

At this point, the operation is complete, so just turn off the ignition and turn it back on to verify that the light is indeed off.


Posted on 10 October 2026 by ScegliAuto


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