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Replacing the Serpentine Belt and Tensioner on Mercedes A-Class W140

Model: Mercedes Classe A W168 - Years 1997-2004
Part: V-belt

In this video tutorial, learn how to remove and replace the serpentine belt on a Mercedes A-Class W140, first generation. First, open the hood of your car and remove the bolt from the upper pulley (if you want to remove the belt tensioner); otherwise, simply loosen it with a wrench to remove the serpentine belt. The video shows the replacement of the tensioner; then, proceed to install the serpentine belt, ensuring it is properly seated!

Updated on 3 April 2026 by ScegliAuto

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by ScegliAuto

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