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How to Reset the Service Light on a Mercedes Viano?

Model: Mercedes Viano MK 1, W639 - Years 2003-2013
Part: Service warning light

To completely clear the Service light from the instrument cluster of the Mercedes Viano, turn on the ignition by inserting the key into the corresponding ignition lock: at this point, press the M button located to the left of the instrument cluster until the word "Reset" appears. Then press the O button located below the previously pressed button: this will allow you to verify that the Service light will be reset when the confirmation message appears. At the end of the operation, you can remove the key.

Posted on 14 April 2026 by ScegliAuto

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