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How to replace the air filter of the Smart 451

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

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Video tutorial

Today we will explain how to replace the air filter of the Smart 451 on your own. Open the front hood and, using a flat-head screwdriver, unscrew the two screws on the air tube to release the clamp. Remove the closing clips of the filter box to open it and replace the air filter.

Clean the filter housing before inserting the new one. Close the cover by attaching the clips and reassemble the air tube. Close the front hood and start the engine to check for any warning lights on the dashboard.


Posted on 11 August 2025 by ScegliAuto


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by ScegliAuto

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