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Service Reset on Mercedes A-Class

Model: Mercedes Classe A W168 - Years 1997-2004
Part: Warning light – error code

What to do when the service light appears on the A-Class? Let's see how to reset it on a Mercedes. Turn on the instrument cluster with the remote key, press the button on the left of the instrument cluster: press twice, and then on the third press, hold it down, turn off, and then turn on the instrument cluster again. Next, find the menu with the maintenance message. The instrument cluster will display the completed maintenance; finally, double-check everything and turn off the instrument cluster. Use the reset performed if you did not get a positive result: go through the maintenance again.

Updated on 28 March 2026 by ScegliAuto

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