Mercedes-Benz 400SE 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 400SE Idler Pulley Replacement is $225 with $85 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1992 Mercedes-Benz 400SEV8-4.2LService typeIdler Pulley ReplacementEstimate$324.56Shop/Dealer Price$373.25 - $505.15
Show example Mercedes-Benz 400SE 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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Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(47)

Rating Summary
45
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Corey

13 years of experience
511 reviews
Corey
13 years of experience
Mercedes-Benz C300 V6-3.0L - Idler Pulley - Charlotte, North Carolina
Corey handled my Mercedes quite well and did so in a timely manner

Andy

5 years of experience
27 reviews
Andy
5 years of experience
Mercedes-Benz C230 L4-1.8L Turbo - Idler Pulley - Friendswood, Texas
Andy is wonderful with communication, updates and exact information.

Jerome

25 years of experience
415 reviews
Jerome
25 years of experience
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!

Ira

49 years of experience
283 reviews
Ira
49 years of experience
Mercedes-Benz ML430 V8-4.3L - Idler Pulley - Sun City Center, Florida
excellent

Excellent Rating

(47)

Rating Summary
45
1
0
0
1
45
1
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Number of Mercedes-Benz Idler Pulley Replacement services completed
517+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

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