Mercedes-Benz GL450 Serpentine/Drive Belt Replacement Costs

Estimate price near me

Service Location

Customer Ratings

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.

See availability

Customer Ratings

Serpentine/Drive Belt Replacement Service

How much does a Serpentine/Drive Belt Replacement cost?

On average, the cost for a Mercedes-Benz GL450 Serpentine/Drive Belt Replacement is $193 with $53 for parts and $140 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2014 Mercedes-Benz GL450V8-4.7L Turbo	Service typeSerpentine/Drive Belt Replacement	Estimate$282.86	Shop/Dealer Price$318.43 - $417.02
2013 Mercedes-Benz GL450V8-4.7L Turbo	Service typeSerpentine/Drive Belt Replacement	Estimate$273.85	Shop/Dealer Price$307.65 - $404.92
2015 Mercedes-Benz GL450V6-3.0L Turbo	Service typeSerpentine/Drive Belt Replacement	Estimate$251.95	Shop/Dealer Price$281.69 - $363.60
2010 Mercedes-Benz GL450V8-4.7L	Service typeSerpentine/Drive Belt Replacement	Estimate$304.29	Shop/Dealer Price$345.72 - $465.84
2011 Mercedes-Benz GL450V8-4.7L	Service typeSerpentine/Drive Belt Replacement	Estimate$304.29	Shop/Dealer Price$347.20 - $468.42
2012 Mercedes-Benz GL450V8-4.7L	Service typeSerpentine/Drive Belt Replacement	Estimate$304.29	Shop/Dealer Price$345.86 - $466.09
2016 Mercedes-Benz GL450V6-3.0L Turbo	Service typeSerpentine/Drive Belt Replacement	Estimate$251.95	Shop/Dealer Price$281.72 - $363.65
2008 Mercedes-Benz GL450V8-4.7L	Service typeSerpentine/Drive Belt Replacement	Estimate$292.11	Shop/Dealer Price$330.50 - $441.48

Show example Mercedes-Benz GL450 Serpentine/Drive Belt Replacement prices

What is a serpentine belt and how does it work?

A serpentine belt is a relatively long, flat, multi-ribbed belt that is driven by the engine’s crankshaft pulley. The belt drives many, and often all, of the engine accessories such as the alternator, air conditioning compressor, power steering pump, water pump, and air pump. The serpentine belt is tensioned by a hydraulic or spring-loaded automatic tensioner. Some older cars use a serpentine belt to drive most accessories but will also have a shorter v-style belt to drive, for example, the power steering pump.

Belts

When to consider replacing the serpentine belt:

Regularly scheduled maintenance. Typically, belt manufacturers recommend belt replacement at 90,000 miles. However, the belt must be inspected for wear or damage at regular intervals prior to this high mileage.
Squealing noise, belt slippage, visible belt damage. Should the belt fail or wear out prematurely, you may hear noise or you may see visible signs of deterioration such as missing chunks of rubber, excessive cracking, or a shredded appearance on the edge of the belt.
Battery Light. A loose belt, perhaps caused by a defective tensioner, may not drive the alternator at adequate speed and thus the battery may discharge, causing the warning light to illuminate.
Engine overheating. Often, the serpentine belt drives the water pump. In those applications, if the belt breaks the engine will overheat in seconds to minutes. If the belt is inadequately tensioned, you may notice higher-than-normal engine operating temperature.

How do mechanics replace the serpentine belt?

Prior to removing the belt, the mechanic must run the engine to determine if the idler pulley and the belt tensioner are noise-free. Those rotating components have grease filled bearings and are subject to wear. In addition, the mechanic will ensure that all pulleys and accessories are turning in the same plane. These steps help make sure your new belt will operate trouble-free for its full-service life.
The belt’s routing path through the various components is noted. The belt tensioner is released, usually with a wrench or lever, to release the tension from the belt. With the tension off, the belt slides off the pulleys.
All rotating components — that is the alternator, air conditioner compressor, etc. — are checked for smooth operation and no noise.
If everything checks out, the new belt is slipped over all of the pulleys while holding the tensioner away from the belt. Once the belt is centered on all pulleys, the tensioner is released and the installation is complete. The engine is run to ensure normal operation.

Is it safe to drive with a serpentine belt problem?

No. Should the belt have visible damage, you risk unexpected and sudden breakage that could potentially leave you stranded. Serpentine belt problems that result in the alternator not charging may cause the battery to discharge, which will result in loss of electrical power to the vehicle. Additionally, if a deteriorated belt breaks and that belt drives the water pump, the engine will overheat in a matter of seconds.

When replacing the serpentine belt keep in mind:

On many cars, the expected service life of a serpentine belt is around 90,000 miles. Should the belt fail well prior to that, a very careful inspection should be performed to check for out-of-alignment pulleys, a possibly out-of-position crankshaft harmonic balancer on which the drive pulley is mounted, binding pulleys, or a defective belt tensioner.
Attention should always be given to serpentine belt routing, since proper routing is critical to proper belt tension, and function of the driven components.
Sometimes it is difficult to distinguish serpentine belt related noise from other engine noises. In these cases, a mechanic will determine the origin of the noise by momentarily running the engine without the serpentine belt attached.

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

(14)

Rating Summary

13

1

0

0

0

13

1

0

0

0

SEE REVIEWS NEAR ME

Joe

36 years of experience

958 reviews

Joe

36 years of experience

by Shirley Rayner

GL450 2010 - Serpentine/Drive Belt - Tarpon Springs, FL

Just very happy with the service.

Eduardo

15 years of experience

528 reviews

Request Eduardo

Eduardo

15 years of experience

Request Eduardo

by Karl Olson

GL450 2007 - Serpentine/Drive Belt - Katy, TX

Outstanding in all respects.

Gustavo

15 years of experience

303 reviews

Request Gustavo

Gustavo

15 years of experience

Request Gustavo

by Rudy Torres

GL450 2007 - Air Spring Bag - San Antonio, TX

Awesome work!! Very knowledgeable and great person! Lucky to find him.

JOHNNY

31 years of experience

120 reviews

JOHNNY

31 years of experience

by Shivesh Sinha

GL450 2012 - Air Springs - Folsom, CA

Very polite, reached on time and communicated very well. Completely reverse experience than what I had with the previous one. I completely lost my faith in YourMechanic. Will go withdraw my complaint at BBB and also modify my review with Yelp. Johnny was great!

Excellent Rating

(14)

Rating Summary

13

1

0

0

0

13

1

0

0

0

SEE REVIEWS NEAR ME

Recent articles & questions

A Buyer’s Guide to the 2012 Mercedes-Benz M-Class

The The 2012 Mercedes-Benz M-Class is a mid-size luxury SUV that combines utility and comfort to make the perfect every day vehicle. It can handle almost any terrain with its all-wheel drive model. Drivers and passengers will experience a quiet...

P0990 OBD-II Trouble Code: Transmission Fluid Pressure Sensor/Switch E Circuit High

P0990 means there is an issue with the transmission fluid pressure sensor or switch, likely due to a fluid or component issue.

P0584 OBD-II Trouble Code: Cruise Control Vacuum Control Circuit High

P0584 means an error with the cruise control vacuum control circuit, caused by a faulty cruise control switch, or a defective vacuum supply hose.

Can it take time for power steering leak damage to show up in the rack and pinion?

Hello. Yes, this is possible. A bad pump or leak can starve other vital components in the steering system causing them to weaken. When this occurs it can take days, weeks, or even months for them to finally fail. I...

Car battery light came on and while driving my car suddenly stalled and my steering wheel got really stiff

Your problem could be as simple as a broken accessory drive belt - sometimes called a serpentine belt. This belt drives both the alternator and power steering pump. It is also possible the engine stalled for some reason, with the...

I just bought a 2005 Volkswagen Jetta 2.0 with 72,000 miles for $3,000 in total the car was completely fine when I had first gotten it and now that it's a month and a half later some significant challenges have come up the check engine light and check airbag light have come on the transmission only had second gear it's automatic and it only has second gear the electrical system is messed up the windows don't go up and down the locks don't work certain parts of the car just from the age need to be updated but that's not the major component but now I'm having trouble with the transmission and pretty much I'm getting 22 mi for a half of a full tank of gas and I can no longer take it on the highway and there's no way of me checking the transmission fluid or to see what's going on with that to diagnose or assess it I can't afford to take that to Volkswagen and I do need your professional expertise and feedback please

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