Mercedes-Benz GL350 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

(20)

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

(20)

Drive Belt Tensioner Replacement Service

How much does a Drive Belt Tensioner Replacement cost?

On average, the cost for a Mercedes-Benz GL350 Drive Belt Tensioner Replacement is $288 with $134 for parts and $154 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2012 Mercedes-Benz GL350V6-3.0L Turbo DieselService typeDrive Belt Tensioner ReplacementEstimate$686.12Shop/Dealer Price$808.98 - $1156.28
2015 Mercedes-Benz GL350V6-3.0L Turbo DieselService typeDrive Belt Tensioner ReplacementEstimate$428.03Shop/Dealer Price$498.42 - $701.65
2014 Mercedes-Benz GL350V6-3.0L Turbo DieselService typeDrive Belt Tensioner ReplacementEstimate$428.03Shop/Dealer Price$498.47 - $701.73
2010 Mercedes-Benz GL350V6-3.0L Turbo DieselService typeDrive Belt Tensioner ReplacementEstimate$614.21Shop/Dealer Price$731.19 - $1074.09
2013 Mercedes-Benz GL350V6-3.0L Turbo DieselService typeDrive Belt Tensioner ReplacementEstimate$428.03Shop/Dealer Price$501.30 - $706.69
2016 Mercedes-Benz GL350V6-3.0L Turbo DieselService typeDrive Belt Tensioner ReplacementEstimate$428.03Shop/Dealer Price$498.74 - $702.20
2011 Mercedes-Benz GL350V6-3.0L Turbo DieselService typeDrive Belt Tensioner ReplacementEstimate$614.21Shop/Dealer Price$731.22 - $1074.14
Show example Mercedes-Benz GL350 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

(20)

Rating Summary
20
0
0
0
0
20
0
0
0
0

Ben

42 years of experience
1589 reviews
Ben
42 years of experience
Mercedes-Benz GL350 V6-3.0L Turbo Diesel - Wheel Speed Sensor Replacement (Driver Side Rear) - Houston, Texas
Professional and skilled

Daniel

13 years of experience
58 reviews
Daniel
13 years of experience
Mercedes-Benz GL350 V6-3.0L Turbo Diesel - Car is not starting - Chattanooga, Tennessee
great experience , knowledgeable

Ronald

42 years of experience
519 reviews
Ronald
42 years of experience
Mercedes-Benz GL350 V6-3.0L Turbo Diesel - ABS Speed Sensor Replacement (Passenger Side Rear) - Houston, Texas
Professional, patient, kind and knowledgeable!

Theodore

17 years of experience
1794 reviews
Theodore
17 years of experience
Mercedes-Benz GL350 V6-3.0L Turbo Diesel - Check Engine Light is on - Woodinville, Washington
Always friendly, courteous and knowledgeable. Theodore has worked on both my vehicles for over 3 yrs and I highly recommend him.

Excellent Rating

(20)

Rating Summary
20
0
0
0
0
20
0
0
0
0
Number of Mercedes-Benz GL350 services completed
220+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

How to Replace a Lost or Stolen Car Title in North Dakota
Your Your car title is what binds you to your vehicle as it proves you are the registered owner. This is a powerful title to hold, and one you will want to keep track of. Unfortunately things can happen and...
How to Replace a Car Window Motor/Window Regulator Assembly
Car window motors and regulators move car windows up and down. If the car window regulator assembly fails, the window will automatically drop down.
How Long Does a Fog Light Relay Last?
All All vehicles come equipped with headlights, and some vehicles offer you more in terms of lighting. Fog lights are a popular option with drivers as they are perfect for foggy conditions obviously, as well as snow, rain, and any...

Rear brakes overheating

For proper diagnosis, this issue should be diagnosed firsthand by a professional, such as one from YourMechanic. It could be that one of the calipers is sticking or there is a problem with the ABS system. The problem could also...

The code for Engine Intake Manifold came up as my car was being scanned, but how do I know exactly what needs to be fixed?

Hi, thanks for writing in. The codes that the computer has stored should be diagnosed to see what is causing them. The induction system cleaning should be the throttle body plates cleaning. The carbon build up on the throttle plates...

Overheating coolant reservoir has a pinhole in it. Is this the cause of overheating?

Hey there. If the coolant reservoir is leaking, then it could leak out enough coolant to cause the engine to overheat. The reservoir is known to get stress heat cracks and leak coolant. You might see a small pinpoint leak,...

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