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How to Polish the Polycarbonate Parts of a Smart Fortwo

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

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Video tutorial

The rear windows of the Smart are made of polycarbonate and can become cloudy due to sunlight and weather conditions. Here’s how to easily restore them.

First, sand them down using sandpaper, starting with 400 grit, then 600, and finally 1000. Next, apply a polishing compound to restore the shine to your windows. If you want to further protect the glass from the sun and maintain the newly restored brightness longer, you can use a protective film available commercially, which will shield your windows from sun and rain.

This same protective film can also be applied to any black parts of the bodywork. The glass polishing method can also be applied to yellowed headlights.


Updated on 5 July 2026 by ScegliAuto


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