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Replacing the spark plugs on the Smart 451

Model: Smart Smart 451 - Years 2007-2015
Part: Spark plugs

On Smart 451 there are not four but three candles, so the first thing you need to do is to unscrew the three screws well shown in the first part of the video. To do this you need an 8mm wrench. Then remove the small rubber plugs and move on to unscrewing the same candles: it is essential to remember that for this purpose you must get a specific 14 mm wrench for candles (and possibly also magnetized, in order to avoid losing the candles around the engine compartment) and not a normal 14mm wrench. To install the new spark plugs, all you have to do is proceed in reverse order.

Posted on 27 August 2021 by ScegliAuto

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