Mercedes-Benz E300 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

(22)

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

(22)

Drive Belt Tensioner Replacement Service

How much does a Drive Belt Tensioner Replacement cost?

On average, the cost for a Mercedes-Benz E300 Drive Belt Tensioner Replacement is $235 with $95 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1999 Mercedes-Benz E300L6-3.0L Turbo DieselService typeDrive Belt Tensioner ReplacementEstimate$419.94Shop/Dealer Price$479.50 - $638.32
1997 Mercedes-Benz E300L6-3.0L DieselService typeDrive Belt Tensioner ReplacementEstimate$348.93Shop/Dealer Price$402.87 - $557.49
1996 Mercedes-Benz E300L6-3.0L DieselService typeDrive Belt Tensioner ReplacementEstimate$348.93Shop/Dealer Price$402.92 - $557.56
1995 Mercedes-Benz E300L6-3.0L DieselService typeDrive Belt Tensioner ReplacementEstimate$407.33Shop/Dealer Price$462.61 - $618.23
2008 Mercedes-Benz E300V6-3.0LService typeDrive Belt Tensioner ReplacementEstimate$350.27Shop/Dealer Price$404.10 - $551.17
2009 Mercedes-Benz E300V6-3.0LService typeDrive Belt Tensioner ReplacementEstimate$350.27Shop/Dealer Price$401.54 - $546.68
1998 Mercedes-Benz E300L6-3.0L Turbo DieselService typeDrive Belt Tensioner ReplacementEstimate$348.93Shop/Dealer Price$402.94 - $557.61
Show example Mercedes-Benz E300 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

(22)

Rating Summary
21
0
1
0
0
21
0
1
0
0

Lee

39 years of experience
294 reviews
Lee
39 years of experience
Mercedes-Benz E300 L6-3.0L Turbo Diesel - Oil Change - Guthrie, Oklahoma
Very Knowledgeable and professional...will continue to schedule services with Lee...

Lee

39 years of experience
294 reviews
Lee
39 years of experience
Mercedes-Benz E300 L6-3.0L Turbo Diesel - Oil Change - Guthrie, Oklahoma
Lee, Was professional, knowledgeable, courteous and thorough....I look forward to working with him again.

Andy

5 years of experience
27 reviews
Andy
5 years of experience
Mercedes-Benz E300 L4-2.0L Turbo - Oil Change - Seabrook, Texas
Andy was thorough and kept me informed.

Luis

19 years of experience
363 reviews
Luis
19 years of experience
Mercedes-Benz E300 L4-2.0L Turbo - Check Engine Light is on - South Orange, New Jersey
Great ! Thank you !

Excellent Rating

(22)

Rating Summary
21
0
1
0
0
21
0
1
0
0
Number of Mercedes-Benz E300 services completed
242+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

How to Quiet a Noisy Drive Belt
The drive belt operates different accessories mounted on the engine. The best way to minimize it's noise is to adjust the drive belt to specification.
P0310 OBD-II Trouble Code: Cylinder 10 Misfire Detected
P0310 P0310 Code Definition The P0310 code is a generic powertrain code related to the ignition system or misfire. In this case, a misfire has been detected specifically in cylinder number 10. Codes related to the P0310 include: P0300: Random/Multiple...
4 Essential Things to Know About Painting Your Car
Vehicles Vehicles are painted to prevent rust, but it also adds a visual appeal to it. Car paint comes in a variety of different colors and finishes. Today, cars can be customized by choosing whatever color of paint you wish....

Oil light keeps coming on

You should have the oil pressure checked first. If the pressure is normal then replace the oil pressure switch (https://www.yourmechanic.com/services/oil-pressure-sensor-replacement). The switch controls the light if pressure is lost or if the sensor shorts internally to a ground which sets...

Engine loses power, revs high, cannot shift gears - 2014 Nissan Rogue

Hello. It sounds like there is an intermittent problem with the throttle position sensor (https://www.yourmechanic.com/services/throttle-position-sensor-replacement) or the idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement). These two sensors are made into the throttle body and the throttle body assembly (https://www.yourmechanic.com/services/throttle-body-replacement) would have to...

Transmission replaced, but still slipping - 2009 Kia Borrego

There's a lot going on here. As far as the transmission concerns, your repair should be under warranty since you had the work done at the dealer. For the rest of the concerns, you may want to hire another technician...

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