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How to Reset the Service Light on a Smart 451?

Model: Smart Smart 451 - Years: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
Part: Service warning light

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Video tutorial

If you have just serviced your Smart 451 or want to postpone such an intervention, you must manually reset the corresponding warning light on the dashboard display. To do this, simply follow the instructions described in this new guide.

First, insert the key and turn on the ignition. As soon as the service light appears, quickly press the small button located on the left side of the dashboard twice in succession.

Immediately after, turn off and then turn on the ignition again. Hold the same button used previously for about 10 seconds and release it as soon as the reset is complete.


Updated on 24 June 2026 by ScegliAuto


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How to Replace the Glow Plugs in the Fiat Ducato 2.3 Multijet?

Glow plugs, as the name suggests, raise the temperature of the engine in diesel vehicles to allow for easier starting. The manufacturer, in this case, Fiat for the Ducato 2.3 Multijet, specifies how often they should be replaced, and a warning light will illuminate when it's time. This work is carried out under the bonnet. First, remove the upper engine cover, then lift the coil and, using a socket wrench of the appropriate size, unscrew the glow plug to remove it from the base, followed by installing the new one.

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by ScegliAuto

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