Mercedes-Benz SL550 Drive Belt Tensioner Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(36)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(36)

Drive Belt Tensioner Replacement Service

How much does a Drive Belt Tensioner Replacement cost?

On average, the cost for a Mercedes-Benz SL550 Drive Belt Tensioner Replacement is $228 with $134 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2009 Mercedes-Benz SL550V8-5.5LService typeDrive Belt Tensioner ReplacementEstimate$381.99Shop/Dealer Price$466.24 - $679.62
2017 Mercedes-Benz SL550V8-4.7L TurboService typeDrive Belt Tensioner ReplacementEstimate$597.63Shop/Dealer Price$731.94 - $1110.06
2008 Mercedes-Benz SL550V8-5.5LService typeDrive Belt Tensioner ReplacementEstimate$361.99Shop/Dealer Price$446.27 - $659.67
2015 Mercedes-Benz SL550V8-4.7L TurboService typeDrive Belt Tensioner ReplacementEstimate$597.63Shop/Dealer Price$731.91 - $1110.01
2016 Mercedes-Benz SL550V8-4.7L TurboService typeDrive Belt Tensioner ReplacementEstimate$597.63Shop/Dealer Price$731.95 - $1110.08
2013 Mercedes-Benz SL550V8-4.7L TurboService typeDrive Belt Tensioner ReplacementEstimate$597.63Shop/Dealer Price$731.93 - $1110.05
2011 Mercedes-Benz SL550V8-5.5LService typeDrive Belt Tensioner ReplacementEstimate$376.99Shop/Dealer Price$462.76 - $677.28
2012 Mercedes-Benz SL550V8-5.5LService typeDrive Belt Tensioner ReplacementEstimate$376.99Shop/Dealer Price$463.48 - $678.53
Show example Mercedes-Benz SL550 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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(36)

Rating Summary
35
0
0
1
0
35
0
0
1
0

Samuel

25 years of experience
30 reviews
Samuel
25 years of experience
Mercedes-Benz SL550 V8-5.5L - Brake Light Switch - Memphis, Tennessee
Good mechanic and good guy Would use again

Juan

10 years of experience
216 reviews
Juan
10 years of experience
Mercedes-Benz SL550 V8-5.5L - Coolant Reservoir - Santa Ana, California
Juan came prepared for the task and knew exactly what was needed. He was very pleasant and particularly thorough.

John

20 years of experience
554 reviews
John
20 years of experience
Mercedes-Benz SL550 V8-5.5L - Battery - Orlando, Florida
John is the Best ! Showed Up On Time, Answered All My Questions And Fixed The Issue !

Peter

36 years of experience
346 reviews
Peter
36 years of experience
Mercedes-Benz SL550 V8-5.5L - Pre-purchase Car Inspection - Mesa, Arizona
Peter performed a pre purchase inspection on a 2011 MB SL550. This was an internet sale and I was not present at the dealership. Peter arrived promptly at the time arranged. The dealership owner said he was thorough and professional. I received a very thorough report within an hour of completion of his visit. Very detailed.

Excellent Rating

(36)

Rating Summary
35
0
0
1
0
35
0
0
1
0
Number of Mercedes-Benz SL550 services completed
396+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1000+
experts on our platform

Recent articles & questions

How Much Does Physical Damage Affect the Value of a Used Car?
So, So, you've found the perfect used car. The color is right, it has navigation and even a sunroof! As you walk around it in awe, daydreaming about taking it down the highway with your favorite song playing, you see...
How to Gift a Car
Giving someone a car as a gift is extremely generous. Discuss the terms and transfer the title to make sure everyone enjoys the car gift.
How to Replace a Hatch Lock Cylinder
Replacing a hatch lock cylinder requires careful attention and only a few tools. You can complete the task in about an hour.

Car starts as usual but as soon as you start to drive the car immediately dies.

If the timing chain is badly worn (https://www.yourmechanic.com/services/timing-chain-replacement) very badly, it may cause the engine to run poorly or not start at all. A badly worn timing chain usually comes with noises and a check engine light. Consider having another...

Chevy Camaro runs rough and stutters

There are dozens of potential causes for your problem. You didn't specify the particular 02 sensor and cam sensor codes, so it's difficult for me to provide much advice. A problem with the timing (such as a stretched chain) could...

Just replaced new timing solenoid sensor my car starts but won't idle

You need to make sure you are using the correct viscosity oil since too thick of oil will effect the solenoids and cam advance system. If correct oil is being used then you will need to have then cam shafts...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com