logo

Mercedes-Benz 300SEL Idler Pulley 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

(38)

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

(38)

Idler Pulley Replacement Service

How much does a Idler Pulley Replacement cost?

On average, the cost for a Mercedes-Benz 300SEL Idler Pulley Replacement is $133 with $38 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1990 Mercedes-Benz 300SELL6-3.0LService typeIdler Pulley ReplacementEstimate$212.95Shop/Dealer Price$254.94 - $341.54
1991 Mercedes-Benz 300SELL6-3.0LService typeIdler Pulley ReplacementEstimate$192.95Shop/Dealer Price$234.97 - $321.59
1989 Mercedes-Benz 300SELL6-3.0LService typeIdler Pulley ReplacementEstimate$171.69Shop/Dealer Price$208.40 - $279.07
1988 Mercedes-Benz 300SELL6-3.0LService typeIdler Pulley ReplacementEstimate$171.69Shop/Dealer Price$208.36 - $279.00
Show example Mercedes-Benz 300SEL Idler Pulley Replacement prices

What is the Idler Pulley all about?

An idler pulley is responsible for guiding and maintaining tension with the drive belt. The drive belt (also called the serpentine belt) connects the engine to various components of the vehicle (such as the air conditioning, power steering, and alternator). Power is transferred from the engine to these systems via the drive belt. The belt is held in place by the idler pulley, which keeps the tension on the drive belt and guides it.

Keep in mind:

When an idler pulley is replaced, it’s a good idea to replace the drive belt as well.

How it's done:

  • Inspect engine for noises
  • Inspect the drive belts
  • Spin the pulley
  • Replace the pulleys if found bad
  • Check for proper operations of the belt

Our recommendation:

Any time that drive belt maintenance is performed on your vehicle, the idler pulley should be examined. Idler pulleys usually wear out with time, so it is a safe precautionary procedure to have your idler pulley replaced during any drive belt servicing.

What common symptoms indicate you may need to replace the Idler Pulley?

  • Noises from the engine
  • Warning lights are on
  • Loss of power steering
  • Car is overheating

How important is this service?

The idler pulley is responsible for keeping your drive belt aligned, and for maintaining the tension in the drive belt. The drive belt is used to transfer power from the engine to the alternator, power steering, and air conditioning, among other systems. If the driver pulley starts to degrade, the drive belt will be less efficient, and your vehicle will be liable to overheat or run poorly. If the idler pulley fully breaks, the drive belt will no longer work at all, and your car won’t run.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Number of Mercedes-Benz Idler Pulley Replacement services completed
418+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(38)
Rating Summary
36
1
0
0
1
36
1
0
0
1

Robert

17 years of experience
28 reviews
Request Robert
Robert
17 years of experience
Request Robert
by Lane
Mercedes-Benz 300SEL L6-3.0L - Drive Belt Tensioner - Newtown Square, Pennsylvania
Robert has a positive attitude and is very professional. He got my vintage (ancient?) Mercedes all patched up and running again. I would definitely recommend Robert without hesitation!

Ben

41 years of experience
1436 reviews
Request Ben
Ben
41 years of experience
Request Ben
by Michael
Mercedes-Benz ML430 V8-4.3L - Idler Pulley - Houston, Texas
My experience with Ben as my mechanic was very professional and very helpful. Ben's years of experience exceeded my expectations and have me a comfort that my car will be fixed properly. Ben was able to not only fix my car in short order but also provided me with a list of items needing repair. I asked questions about my car and Ben was very complete to provide me with not an understanding of the needed repairs but why they are necessary to keep my car operating in good condition. Ben is a value to your business and I will recommend him to all my friends and collegues. Thank you for having Ben on your team!

Jerome

24 years of experience
415 reviews
Request Jerome
Jerome
24 years of experience
Request Jerome
by Leon
Mercedes-Benz C300 V6-3.0L - Idler Pulley - Gwynn Oak, Maryland
SINCE JEROME REPLACED THE IDLER PULLEY AND SERPENTINE BELT ON MY MERCEDES 300 I HAVE NOT HAD ANY MORE PROBLEMS. MY CAR RUNS GREAT! MY MAN GOT MAD MECHANICAL SKILLS!

Joel

21 years of experience
987 reviews
Request Joel
Joel
21 years of experience
Request Joel
by John
Mercedes-Benz C350 V6-3.5L - Idler Pulley - Jacksonville, Florida
Joel arrived on time and performed the necessary repairs professionally and in a timely manner.

Excellent Rating

(38)
Rating Summary
36
1
0
0
1
36
1
0
0
1
Number of Mercedes-Benz Idler Pulley Replacement services completed
418+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Recent articles & questions

How to Buy a Good Quality Accelerator Pump
Nestled Nestled down in the carburetor’s fuel bowl is a little pump that provides extra sprays of needed fuel in situations like starting the car or passing on the highway. Fuel-injected vehicles do not need this pump; it is only...
Read more
How to Remove Bugs From Your Car
Regular, Regular, everyday driving exposes your vehicle to bugs (https://www.yourmechanic.com/article/how-to-remove-bugs-from-your-car-by-jason-unrau) and tar which get splattered all over your windshield, paint job, headlights, and grille. Parking your vehicle on your driveway or on the picturesque street under a shady tree can...
Read more
How to Change a Fuel Filter
Changing a fuel filter can be challenging, as you may need tools specific to the fuel line fitting of your vehicle.
Read more

Radiator and exhaust leak.

These are two separate problems. A cooling system pressure test using dedicated equipment will be able to pinpoint the location of your coolant leak. An exhaust leak can usually be found by placing a rag in the tailpipe, which will...
Read more

The ESP light turns on and car stops

Hi. As you probably know, ESP stands for electronic stability program. If the car detects the wheels are spinning or there is a danger of skidding into a turn, it will illuminate the ESP light. If the ESP light flashes...
Read more

How long does it take to replace a axel/cv shaft assembly

On the 2006 Navigator, if a professional mechanic is replacing the axle(s), it is assumed to take about 1 hour to replace one axle (i.e., one side) whether it is the rear axle or the front axle. Replacing both axles...
Read more
  1. Home
  2. Estimates
  3. Mercedes-Benz
  4. 300SEL
  5. Idler Pulley Replacement

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

Read FAQ
GET A QUOTE