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How to Perform the Service Reset on a Mercedes A-Class W169

Model: Mercedes Classe A W169 - Years 2004-2012
Part: Warning light – error code

Start the service reset procedure by turning the key to the first position to power on the vehicle's instrument cluster without starting the engine. Next, press the speedometer button until you see "UB" on the information display. After that, use the arrows on the left side of the steering wheel to open the menu and select "confirmation" by navigating with the "+" and "-" buttons on the right side of the steering wheel, as shown in the video. Then, select "full service" and finally confirm the entire operation to reset the service light.

Updated on 30 July 2026 by ScegliAuto

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