Mercedes-Benz GL450 Drive Belt Tensioner Replacement at your home or office.

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$204.17 - $457.46

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Drive Belt Tensioner Replacement Estimate for Mercedes-Benz GL450

Mercedes-Benz GL450 Drive Belt Tensioner Replacement costs $322 on average.

CarServiceEstimateShop/Dealer Price
2009 Mercedes-Benz GL450V8-4.7LService typeDrive Belt Tensioner ReplacementEstimate$463.96Shop/Dealer Price$562.92 - $812.06
2016 Mercedes-Benz GL450V6-3.0L TurboService typeDrive Belt Tensioner ReplacementEstimate$273.36Shop/Dealer Price$340.76 - $459.02
2013 Mercedes-Benz GL450V8-4.7L TurboService typeDrive Belt Tensioner ReplacementEstimate$556.48Shop/Dealer Price$675.13 - $986.02
2012 Mercedes-Benz GL450V8-4.7LService typeDrive Belt Tensioner ReplacementEstimate$463.96Shop/Dealer Price$566.05 - $817.54
2011 Mercedes-Benz GL450V8-4.7LService typeDrive Belt Tensioner ReplacementEstimate$463.96Shop/Dealer Price$560.82 - $808.39
2008 Mercedes-Benz GL450V8-4.7LService typeDrive Belt Tensioner ReplacementEstimate$490.96Shop/Dealer Price$589.20 - $837.81
2015 Mercedes-Benz GL450V6-3.0L TurboService typeDrive Belt Tensioner ReplacementEstimate$716.94Shop/Dealer Price$888.46 - $1329.26
2007 Mercedes-Benz GL450V8-4.7LService typeDrive Belt Tensioner ReplacementEstimate$463.96Shop/Dealer Price$561.81 - $810.13
Show example Mercedes-Benz GL450 Drive Belt Tensioner Replacement prices

Drive Belt Tensioner Replacement Service

What is the Drive Belt Tensioner all about?

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.

Keep in mind:

Tensioners usually come with pulleys; they are normally replaced together. Also, when replacing a tensioner, the drive belt usually must be removed. A mechanic may recommend replacing the belt as well.

How it's done:

  • Check for any noise in the engine (usually a squeaky or grinding noise).
  • Remove the drive belt(s) (in most cases).
  • Inspect drive belt pulleys.
  • Check the drive belt tensioner.
  • Remove and replace the tensioner if faulty.
  • Start car to see if noise is gone.

Our recommendation:

Your drive belt tensioner should always be inspected when your drive belt is serviced. During routine maintenance and inspection, your drive belt system should be reviewed to make sure that all the components are in working order. The drive belt tensioner will usually last longer than the drive belts, so as long as your tensioner is inspected or replaced when your drive belts are, your belt system should remain in good shape.

What common symptoms indicate you may need to replace the Drive Belt Tensioner?

Unusual noise (squeaky or grinding sound) every time you start the engine.

How important is this service?

The air conditioning, power steering, and alternator in your vehicle are given power through the drive belt. The belt is attached to both the crankshaft and these systems, and transfers power from the engine to drive each of these components. The drive belt tensioner is responsible for keeping the tension in the drive belt, which allows it to continue moving and transferring power. When the drive belt tensioner fails, the tension in the drive belt will begin to diminish, and the vehicle will not operate as well.

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Meet some of our expert Mercedes-Benz mechanics

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Excellent Rating


YourMechanic Mercedes-Benz GL450 Service

Average Rating

4.9/5

Number of Reviews

177

Rating Summary
165
10
1
1
0
165
10
1
1
0

Maxwell

17 years of experience
390 reviews
Maxwell
17 years of experience
Mercedes-Benz GL450 - Car is slow to accelerate - Cypress, Texas
Awesome! Very knowledgable, patient and helpful.

Joe

42 years of experience
762 reviews
Joe
42 years of experience
Mercedes-Benz GL450 - Crankshaft Harmonic Balancer - Tampa, Florida
Great job a mechanic that knows wthat is doing plus a friendly and profesional person thanks joe

Theodore

15 years of experience
1248 reviews
Theodore
15 years of experience
Mercedes-Benz GL450 - Oil Change - Issaquah, Washington
Theo is always great to work with and he does a good job. I'd recommend him to anyone.

Mitchell

6 years of experience
30 reviews
Mitchell
6 years of experience
Mercedes-Benz GL450 - Car is not starting - New Orleans, Louisiana
Very polite and professional. Only the inspection of the vehicle has taken place at this point. I look forward to seeing how the rest of the process goes.

Excellent Rating


YourMechanic Mercedes-Benz GL450 Service

Average Rating

4.9/5

Number of Reviews

177

Rating Summary
165
10
1
1
0
165
10
1
1
0
Number of Mercedes-Benz GL450 services completed
1947+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
900+
experts on our platform

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