car engine information videos
Some Assembly Required: BMW Particulate Filter
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The Particulate Filter captures pollutant particles from the engine and miraculously burns them into clean vapor. Learn how the Particulate Filter works on Discovery Channel's "Some Assembly... (more info)

The Particulate Filter captures pollutant particles from the engine and miraculously burns them into clean vapor. Learn how the Particulate Filter works on Discovery Channel's "Some Assembly Required."

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