Mercedes-Benz GLB35 AMG Serpentine/Drive Belt 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

(251)

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

(251)

Serpentine/Drive Belt Replacement Service

How much does a Serpentine/Drive Belt Replacement cost?

On average, the cost for a Mercedes-Benz GLB35 AMG Serpentine/Drive Belt Replacement is $148 with $53 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
* Mercedes-Benz GLB35 AMGL4-2.0L TurboService typeSerpentine/Drive Belt ReplacementEstimate$221.49Shop/Dealer Price$265.62 - $358.62
* Mercedes-Benz GLB35 AMGL4-2.0L TurboService typeSerpentine/Drive Belt ReplacementEstimate$201.49Shop/Dealer Price$245.65 - $338.67
* Mercedes-Benz GLB35 AMGL4-2.0L TurboService typeSerpentine/Drive Belt ReplacementEstimate$201.49Shop/Dealer Price$245.65 - $338.67
Show example Mercedes-Benz GLB35 AMG 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

(251)

Rating Summary
242
5
1
0
3
242
5
1
0
3

Dario

9 years of experience
58 reviews
Dario
9 years of experience
Mercedes-Benz E350 V6-3.5L - Serpentine/Drive Belt - Jonesboro, Georgia
Great guy. Came right on time. Very helpful. Showed us the problems. Helped to fix 2 problems rather than one.

Chris

11 years of experience
281 reviews
Chris
11 years of experience
Mercedes-Benz SLK350 V6-3.5L - Serpentine/Drive Belt - Phoenix, Arizona
Chis was great. Before my appointment with Chris, I had a sound I suspected was a drive belt that needed to be replaced, and I tried to save money, the wrong way. Chris was able to show me what all the issues around the noise were, and I deduced without his prompting what really need to be fixed. So we were able to get the job done perfectly with the time and resources allowed, and my errors in planning were able to be overcome the options he presented.

Andrew

26 years of experience
35 reviews
Andrew
26 years of experience
Mercedes-Benz GLK350 V6-3.5L - Serpentine/Drive Belt - Las Vegas, Nevada
Andrew did a great job!

Paul

23 years of experience
292 reviews
Paul
23 years of experience
Mercedes-Benz E350 V6-3.5L - Serpentine/Drive Belt - Tampa, Florida
Paul was great, took time to address my situation and gave a better analysis than I anticipated. Will highly recommend Paul to my friends. Charlie R

Excellent Rating

(251)

Rating Summary
242
5
1
0
3
242
5
1
0
3
Number of Mercedes-Benz Serpentine/Drive Belt Replacement services completed
2761+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

P0147 OBD-II Trouble Code: O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 3)
P0147 P0147 code definition O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 3) What the P0147 code means P0147 is the OBD-II generic code indicating the Engine Control Module (ECM) has tested the O2 sensor heater circuit during startup and...
How to Keep Your Car Running Well When It’s Hot Outside
Your Your car is affected considerably by the environment around it, including: Cold, freezing temperatures Dry, arid climates Hot temperatures and direct sunlight Precipitation in the form of rain or snow If your car is exposed to moisture all the...
10 Best Stores to Buy Auto Parts in Hartford, Connecticut
Automotive technicians rely on auto parts stores to add and replace car parts. The best auto parts shop in Hartford is Napa Auto Parts.

What is automatic transmission adaptive learning?

While most cars with automatic transmissions offer basic operability, yours is different. The automatic transmission is equipped with a learning tool that allows it to learn how you drive and adapt to those needs. This offers better performance and helps...

Auxiliary belt squeaking, pulleys 2007 Ford Fusion

Hello - the noises you describe could be coming from the serpentine belt idler pulley (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-idler-pulley), the belt itself, or the tensioner. I would recommend having the serpentine belt, and idler pulley, including the tensioner - replaced (https://www.yourmechanic.com/services/idler-pulley-replacement) by a...

my car idle too high whining when accelerating and car hesitates going in reverse

If the fluid level in the transmission is too high or too low that can cause the transmission to malfunction. The fluid level should be corrected and then the transmission re-evaluated. With regard to the high idle, In the majority...

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