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

(38)

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

(38)

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 $235 with $95 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2011 Mercedes-Benz SL550V8-5.5LService typeDrive Belt Tensioner ReplacementEstimate$441.78Shop/Dealer Price$516.53 - $725.19
2007 Mercedes-Benz SL550V8-5.5LService typeDrive Belt Tensioner ReplacementEstimate$490.27Shop/Dealer Price$562.90 - $769.97
2014 Mercedes-Benz SL550V8-4.7L TurboService typeDrive Belt Tensioner ReplacementEstimate$653.73Shop/Dealer Price$779.06 - $1150.45
2012 Mercedes-Benz SL550V8-5.5LService typeDrive Belt Tensioner ReplacementEstimate$431.87Shop/Dealer Price$503.26 - $709.41
2015 Mercedes-Benz SL550V8-4.7L TurboService typeDrive Belt Tensioner ReplacementEstimate$653.73Shop/Dealer Price$780.68 - $1153.28
2009 Mercedes-Benz SL550V8-5.5LService typeDrive Belt Tensioner ReplacementEstimate$417.27Shop/Dealer Price$488.59 - $694.67
2018 Mercedes-Benz SL550V8-4.7L TurboService typeDrive Belt Tensioner ReplacementEstimate$641.01Shop/Dealer Price$763.17 - $1125.04
2016 Mercedes-Benz SL550V8-4.7L TurboService typeDrive Belt Tensioner ReplacementEstimate$653.73Shop/Dealer Price$779.06 - $1150.44
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

(38)

Rating Summary
37
0
0
1
0
37
0
0
1
0

Richard

22 years of experience
237 reviews
Richard
22 years of experience
Mercedes-Benz SL550 V8-5.5L - Battery - Naples, Florida
simply outstanding service...from my first call to the company to the great on site experience provided by your tech Richard!

Jeremy

21 years of experience
802 reviews
Jeremy
21 years of experience
Mercedes-Benz SL550 V8-5.5L - Brake Rotor/Disc Replacement (Rear) - Boynton Beach, Florida
Excellent work performed. Arrived even before scheduled time but did call to see if that was alright. Arrived with all the right parts and tools to complete the job ( rear rotors and pads ) in a very efficient and timely manner.

Robert

41 years of experience
37 reviews
Robert
41 years of experience
Mercedes-Benz SL550 V8-4.6L Turbo - Transmission Fluid Service - Phoenix, Arizona
He was friendly , competent and took his time to do the job correctly . I would definitely use him for my future auto needs

Edmar

23 years of experience
246 reviews
Edmar
23 years of experience
Mercedes-Benz SL550 V8-5.5L - Pre-purchase Car Inspection - Carrollton, Texas
I was very impressed by Edmar! He came 15 min early and spent 15min after the inspection to discuss his findings and answers all my questions. I highly recommend him for a pre-purchase car inspection!

Excellent Rating

(38)

Rating Summary
37
0
0
1
0
37
0
0
1
0
Number of Mercedes-Benz SL550 services completed
418+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

2012 Toyota Tundra vs. 2012 Chevrolet Silverado: Which One Should I Buy?
Large work trucks are meant for one thing: work! These vehicles are rough and ready, and can handle nearly anything you throw at them, with the exception of a car pool. While they offer two or four door options, you...
A Buyer’s Guide to the 2012 Jeep Wrangler
With With some subtle updates, improvements, and increases in size, the 2012 Jeep Wrangler maintains the model’s familiar and rugged look and feel. While the style of the Wrangler may not have changed much, though, its function has definitely been...
P2324 OBD-II Trouble Code: Ignition Coil I Primary Control Circuit Low
P2324 P2324 code definition Ignition Coil I Primary Control Circuit Low What the P2324 code means P2324 is an OBD-II generic code for the Ignition Coil I Primary Control Circuit Low to the Engine Control Module (ECM). This means the...

Gear always in Drive

I'm assuming that you mean that the D4 light is lit up on the dash not that the transmission is in gear. The D4 light indicates a problem with the electrical system, and codes will need to be pulled off...

Rear wheel getting hot after caliper and hose replacement

There are a few reasons that a caliper piston might fail to retract and there is also the possibility that the heat is being generated by a failing wheel bearing. If the issue is brake related, pressure in the line...

Hi they’re I’ve got a vw pol 1.2 3 cyl I’ve just done a cam chain on it as isit was throuwing up code saying crank shaft sensor I then changed that and then still giving same code so I done my cam chain as it had jumped a tooth I have now done that and now when it is up to temperature it lacks acceleration power and also struggles to start ones I’ve turned it of do

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