Mercury Mariner Drive Belt Tensioner Replacement at your home or office.

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Drive Belt Tensioner Replacement Service

How much does a Drive Belt Tensioner Replacement cost?

On average, the cost for a Mercury Mariner Drive Belt Tensioner Replacement is $211 with $71 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2009 Mercury MarinerL4-2.5LService typeDrive Belt Tensioner ReplacementEstimate$318.58Shop/Dealer Price$363.08 - $488.46
2009 Mercury MarinerL4-2.5L HybridService typeDrive Belt Tensioner ReplacementEstimate$326.39Shop/Dealer Price$373.32 - $510.00
2008 Mercury MarinerL4-2.3L HybridService typeDrive Belt Tensioner ReplacementEstimate$592.35Shop/Dealer Price$705.80 - $1041.96
2011 Mercury MarinerL4-2.5LService typeDrive Belt Tensioner ReplacementEstimate$309.57Shop/Dealer Price$352.32 - $476.40
2009 Mercury MarinerV6-3.0LService typeDrive Belt Tensioner ReplacementEstimate$393.63Shop/Dealer Price$458.87 - $647.10
2006 Mercury MarinerV6-3.0LService typeDrive Belt Tensioner ReplacementEstimate$367.45Shop/Dealer Price$424.81 - $592.41
2010 Mercury MarinerL4-2.5LService typeDrive Belt Tensioner ReplacementEstimate$309.57Shop/Dealer Price$352.34 - $476.43
2011 Mercury MarinerV6-3.0LService typeDrive Belt Tensioner ReplacementEstimate$393.63Shop/Dealer Price$457.40 - $644.52
Show example Mercury Mariner Drive Belt Tensioner Replacement prices

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 Mercury mechanics

Real customer reviews from Mercury owners like you.

Excellent Rating

(178)

Rating Summary
168
7
1
0
2
168
7
1
0
2

Allen

37 years of experience
471 reviews
Allen
37 years of experience
Mercury Mariner V6-3.0L - Window Motor / Regulator Assembly Replacement (Driver Side Front) - New Smyrna Beach, Florida
Never had such a great experience with a car repair. Allen was just great.

Albert

23 years of experience
81 reviews
Albert
23 years of experience
Mercury Mariner V6-3.0L - Car is not starting - Flowery Branch, Georgia
He was promt, plesant and professional. I was very happy with his work and promptly booked his service again based on his recommendations. So nice to be able to do this all at my home.

Nolan

31 years of experience
296 reviews
Nolan
31 years of experience
Mercury Mariner V6-3.0L - Car Battery Replacement - Tucson, Arizona
Much appreciated that Nolan could stop by today (compared to the original appointment today of tomorrow). Superb appointment. Thank you!

Breck

21 years of experience
681 reviews
Breck
21 years of experience
Mercury Mariner V6-3.0L - Front Crankshaft Seal Replacement - Houston, Texas
Ver professional and knowledgeable

Excellent Rating

(178)

Rating Summary
168
7
1
0
2
168
7
1
0
2
Number of Mercury Mariner services completed
1958+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

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