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How to Reset the "Service" Light on a Mercedes A-Class?

Model: Mercedes Classe A W169 - Years 2004-2012
Part: Service warning light

Start by turning on the instrument cluster without starting the engine. Once done, press the button near the engine temperature gauge three times. This will display the current voltage of the vehicle on the multifunction screen. Next, press the down button on the multifunction steering wheel to bring up "Service Data." Then, select "Confirmation" using the minus button on the steering wheel and confirm with the multifunction button. Once confirmed, "Full Service" will appear, and you will need to confirm again. After confirming once more, you will have successfully completed the reset.

Updated on 2 May 2026 by ScegliAuto

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