Mercedes-Benz GL550 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

(37)

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

(37)

Drive Belt Tensioner Replacement Service

How much does a Drive Belt Tensioner Replacement cost?

On average, the cost for a Mercedes-Benz GL550 Drive Belt Tensioner Replacement is $266 with $95 for parts and $171 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2015 Mercedes-Benz GL550V8-4.7L TurboService typeDrive Belt Tensioner ReplacementEstimate$700.12Shop/Dealer Price$841.41 - $1224.77
2014 Mercedes-Benz GL550V8-4.7L TurboService typeDrive Belt Tensioner ReplacementEstimate$664.12Shop/Dealer Price$805.44 - $1188.82
2011 Mercedes-Benz GL550V8-5.5LService typeDrive Belt Tensioner ReplacementEstimate$437.98Shop/Dealer Price$536.29 - $760.20
2012 Mercedes-Benz GL550V8-5.5LService typeDrive Belt Tensioner ReplacementEstimate$437.98Shop/Dealer Price$536.22 - $760.08
2009 Mercedes-Benz GL550V8-5.5LService typeDrive Belt Tensioner ReplacementEstimate$360.66Shop/Dealer Price$439.69 - $605.65
2016 Mercedes-Benz GL550V8-4.7L TurboService typeDrive Belt Tensioner ReplacementEstimate$664.12Shop/Dealer Price$805.44 - $1188.82
2008 Mercedes-Benz GL550V8-5.5LService typeDrive Belt Tensioner ReplacementEstimate$369.66Shop/Dealer Price$448.21 - $613.81
2010 Mercedes-Benz GL550V8-5.5LService typeDrive Belt Tensioner ReplacementEstimate$446.98Shop/Dealer Price$546.03 - $770.51
Show example Mercedes-Benz GL550 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

(37)

Rating Summary
36
0
0
0
1
36
0
0
0
1

Jim

33 years of experience
185 reviews
Jim
33 years of experience
Mercedes-Benz GL550 V8-5.5L - Battery - Pleasanton, California
very good

Chris

18 years of experience
491 reviews
Chris
18 years of experience
Mercedes-Benz GL550 V8-5.5L - Car will not turn over - Richardson, Texas
He’s an experienced trust worthy-man and reliable . Keep him for ever

Chris

18 years of experience
491 reviews
Chris
18 years of experience
Mercedes-Benz GL550 V8-5.5L - Starter - Richmond, Texas
Did a very good job. Was on time and professional.

John

27 years of experience
1019 reviews
John
27 years of experience
Mercedes-Benz GL550 V8-5.5L - Brake Pads Replacement (Front) - Pearland, Texas
Great mechanic

Excellent Rating

(37)

Rating Summary
36
0
0
0
1
36
0
0
0
1
Number of Mercedes-Benz GL550 services completed
407+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

Symptoms of a Bad or Failing Electronic Ignition Pickup
If your car has an electronic distributor ignition system and the engine stalls or car does not start, you may have to replace the ignition pickup.
Top 10 Cities for Sports Car Owners
You can get more bang for your buck driving your luxury sports car in these cities. Oklahoma City has affordable gas and an open track to drive on.
P0255 OBD-II Trouble Code: Injection Pump Fuel Metering Control “A” Intermittent (Cam/Rotor/Injector)
P0255 P0255 code definition The P0255 OBD-II Trouble Code refers to a problem with the injection pump fuel metering control “A” intermittent (cam/rotor/injector). What the P0255 code means The powertrain control module has found an issue with the signal voltage...

My transmission is slipping and the engine is losing power and cutting out - 2009 Jeep Patriot

Hi and thanks for contacting YourMechanic. Check the transmissions torque converter by performing a stall test. Put the vehicle in an area with nothing in front of it and set the parking brake. Step on the service brake and put...

has bad idle it goes up and down with engine light flashing The engine light is off when it stops. Only after 20mins of driving

Often a flashing check engine light signifies misfiring. Inasmuch as the check engine light has illuminated, there are definitely stored trouble codes and if misfiring has occurred, those codes will reflect that. To obtain a diagnosis of the underlying problem,...

missing out between 20-45 mph

If the plugs and coils are in good shape, that leaves fuel system or vacuum leaks. It is probably too early in your car's life to expect internal malfunctions. Look under the hood for any hoses or rubber boots that...

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