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Fixing Mercedes Engine Rattle with Belt Tensioner Replacement

Posted on October 12, 2025 by Gervais Auto Group

The belt tensioner in a Mercedes works much like the coach of a relay race team, where it doesn’t run, but it ensures that the runner, i.e., the serpentine belt, stays in position and passes energy smoothly. The serpentine belt powers critical components of the car, including the alternator, air… Read More