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Mercedes-Benz 300SEL Idler Pulley Replacement at your home or office.

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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.

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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
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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
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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
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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
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Jerome
24 years of experience
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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
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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

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