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Replacing the Serpentine Belt on Mercedes B-Class W245

Model: Mercedes Classe B W245, MK 1 - Years 2005-2011
Part: V-belt

In this tutorial, you will learn how to remove and replace the serpentine belt on a Mercedes B-Class W245 in simple steps, which also applies to other models from the manufacturer, such as the A-Class. First, lift the vehicle; then loosen the tensioner with a 15 mm spanner to free the serpentine belt from the pulleys, as shown in the video. At this point, ensure the new serpentine belt is correctly positioned, possibly by manually rotating the pulleys first; finally, start the engine and check the result.

Updated on 3 April 2026 by ScegliAuto

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