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How to Reset the Service Light on the Smart Forfour

Model: Smart Forfour W454, MK 1 - Years 2004-2006
Part: Warning light – error code

In today's video, learn how to reset the service light on the Smart Forfour. This tutorial also applies to the two-seater version, the Fortwo. First, ensure you perform the maintenance recommended by the manufacturer, as detailed in the vehicle's user and maintenance manual. Next, locate the relevant button positioned behind the instrument cluster. Press and hold it, then start the vehicle. Confirm that you want to perform the reset and set the mileage at which you want the service light to come back on, then finish.

Updated on 28 June 2026 by ScegliAuto

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