Drive Belt Tensioner Replacement Estimate for BMW 135i

BMW 135i Drive Belt Tensioner Replacement costs $254 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$254 to $269
Labor: $105 -$120
Parts: $149
Average Dealer price
$437
Average Shop price
$311
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CarServiceYourMechanic PriceShop/Dealer Price
2008 BMW 135iL6-3.0L TurboService typeDrive Belt Tensioner ReplacementYourMechanic Price$265.83Shop/Dealer Price$344.15 - $493.36
2010 BMW 135iL6-3.0L TurboService typeDrive Belt Tensioner ReplacementYourMechanic Price$262.86Shop/Dealer Price$340.62 - $487.73
2009 BMW 135iL6-3.0L TurboService typeDrive Belt Tensioner ReplacementYourMechanic Price$262.86Shop/Dealer Price$340.50 - $487.52
Show example BMW 135i Drive Belt Tensioner Replacement prices

Parts required for a BMW 135i Drive Belt Tensioner Replacement

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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 BMW Models