Drive Belt Tensioner Replacement Estimate for Mercedes-Benz S450

Mercedes-Benz S450 Drive Belt Tensioner Replacement costs $216 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$216 to $227
Labor: $77 -$88
Parts: $139
Average Dealer price
$380
Average Shop price
$265
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CarServiceYourMechanic PriceShop/Dealer Price
2009 Mercedes-Benz S450V8-4.6LService typeDrive Belt Tensioner ReplacementYourMechanic Price$227.05Shop/Dealer Price$292.52 - $426.02
Show example Mercedes-Benz S450 Drive Belt Tensioner Replacement prices
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Parts required for a Mercedes-Benz S450 Drive Belt Tensioner Replacement

Accessory Belt Tensioner
$139

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All about Drive Belt Tensioner Replacement

A Drive Belt Tensioner is a pulley mounted to either a spring mechanism or to an adjustable pivot point that is used to keep constant tension on your serpentine belt. That is the big long belt in the front of your engine. The tensioner rides on the outside surface of the belt to put pressure, or tension, on the belt and against the pulleys that drive things like the alternator, power steering, air conditioner, etc.

Drive Belt Tensioner Replacement Estimates for Popular Mercedes-Benz Models