Mercedes-Benz C300 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

(3)

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

(3)

Drive Belt Tensioner Replacement Service

How much does a Drive Belt Tensioner Replacement cost?

On average, the cost for a Mercedes-Benz C300 Drive Belt Tensioner Replacement is $290 with $136 for parts and $154 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2010 Mercedes-Benz C300V6-3.0LService typeDrive Belt Tensioner ReplacementEstimate$488.28Shop/Dealer Price$564.92 - $775.00
2014 Mercedes-Benz C300V6-3.5LService typeDrive Belt Tensioner ReplacementEstimate$788.54Shop/Dealer Price$932.42 - $1352.49
2013 Mercedes-Benz C300V6-3.5LService typeDrive Belt Tensioner ReplacementEstimate$715.55Shop/Dealer Price$857.87 - $1276.77
2017 Mercedes-Benz C300L4-2.0L TurboService typeDrive Belt Tensioner ReplacementEstimate$547.48Shop/Dealer Price$628.93 - $866.59
2015 Mercedes-Benz C300L4-2.0L TurboService typeDrive Belt Tensioner ReplacementEstimate$547.48Shop/Dealer Price$635.29 - $877.71
2008 Mercedes-Benz C300V6-3.0LService typeDrive Belt Tensioner ReplacementEstimate$431.87Shop/Dealer Price$503.54 - $709.88
2011 Mercedes-Benz C300V6-3.0LService typeDrive Belt Tensioner ReplacementEstimate$431.87Shop/Dealer Price$503.30 - $709.46
2016 Mercedes-Benz C300L4-2.0L TurboService typeDrive Belt Tensioner ReplacementEstimate$547.48Shop/Dealer Price$631.16 - $870.49
Show example Mercedes-Benz C300 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

(3)

Rating Summary
3
0
0
0
0
3
0
0
0
0

Excellent Rating

(3)

Rating Summary
3
0
0
0
0
3
0
0
0
0
Number of Mercedes-Benz C300 Drive Belt Tensioner Replacement services completed
33+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

P0445 OBD-II Trouble Code: Evaporative Emission Control System Purge Control Valve Circuit Shorted
Trouble code P0445 means the evaporative emission control system purge control valve has a problem.
How Long Does an Oil Pump Cover Gasket Last?
In In order for the oil in your car to get to where it needs to go, it will need the right amount of pressure. There are a number of different systems and parts on a car that help to...
Porsche Certified Pre-Owned (CPO) Car Program
Shopping Shopping for a used Porsche vehicle often leads many drivers to consider certified pre-owned options. Porsche is one of many manufacturers that have a certified pre-owned (CPO) program. Each car manufacturer structures their CPO program differently; read on to...

Transmission stopped forward backward

Hello. There could be an electrical problem with the transmission. Some of the wiring to the transmission could have been damaged from road debris or the computer for the transmission has failed. There may also be some internal parts of...

Maintenance for spark plugs and belt. 2011 Honda Crosstour

Hello. The manufacturer’s manual is correct and it is best to follow their maintenance repair schedule. The dealership is probably telling you something different because they have seen spark plugs and timing belts last up to 110,000 to 120,000 miles...

When I turn my car on it bogs down off and on but when I turn my ac on it will keep doing it worse and then the car starts shaking

There are a number of things that may cause the engine to bog down as you describe. The reason this appears to be worse when the AC is on is that the AC compressor requires a bit more power from...

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