Mercedes-Benz E420 Water Pump Pulley Replacement at your home or office.

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Water Pump Pulley Replacement Service

How much does a Water Pump Pulley Replacement cost?

On average, the cost for a Mercedes-Benz E420 Water Pump Pulley Replacement is $531 with $123 for parts and $408 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1997 Mercedes-Benz E420V8-4.2LService typeWater Pump Pulley ReplacementEstimate$740.40Shop/Dealer Price$877.14 - $1118.05
Show example Mercedes-Benz E420 Water Pump Pulley Replacement prices

What is the Water Pump Pulley all about?

Your car’s engine produces a great deal of heat, which can easily damage internal components. To ensure that your engine runs properly and doesn’t lock up, it needs to maintain the right temperature (called the operating temperature). This is done in large part with engine coolant. Coolant circulates through the engine, absorbing heat and then transporting it to the radiator, where the fluid is cooled by air, before once more beginning the journey through the engine. The water pump is responsible for pushing coolant through your engine using impellers inside the engine. The pump is turned by a pulley, which is in turn moved by your engine drive belt. If the pulley is damaged, bent, or seized, the drive belt can come off the pulley and the water pump will cease to turn. If that happens, the engine will overheat.

Keep in mind:

  • Water pump pulleys rarely fail. Most problems are generally with the bearings behind the pulley, or the water pump itself.
  • Consider replacing the water pump at the same time as you replace the pulley/pulley bearings.
  • A failed water pump pulley or bearings will cause your water pump to be inoperable and lead to engine damage.

How it's done:

  • The hood is raised and supported
  • The drive belt tensioner is loosened and belt is removed from the water pump pulley
  • The defective pulley is removed from the water pump shaft
  • The new pulley is installed and tightened to the water pump
  • The belt is reinstalled around the new pulley and the tensioner tightened
  • The engine is started and the vehicle is road tested for proper operation

Our recommendation:

The water pump pulley does not require servicing, and is not a common point of failure. If you suspect a problem with the water pump pulley, have one of our expert mechanics diagnose and replace your water pump pulley if necessary.

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

  • Engine drive belt or serpentine belt shows excessive wear
  • Grinding or screeching noises while the engine running
  • Pieces of the pulley visibly missing or damaged

How important is this service?

If the water pump pulley is broken or damaged and the water pump is not circulating coolant, heat levels in the engine quickly build up to the point that they can damage your engine. It is essential to get your water pump pulley replaced as soon as possible. Do not drive the vehicle until it is repaired.

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Excellent Rating

(24)

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Chris

22 years of experience
2229 reviews
Chris
22 years of experience
Mercedes-Benz E420 V8-4.2L - Fuel Pump - Aliso Viejo, California
Extremely knowledgeable and punctual!

Nicholas

11 years of experience
586 reviews
Nicholas
11 years of experience
Mercedes-Benz E420 V8-4.2L - Thermostat Housing - Raleigh, North Carolina
Great.

Trung

12 years of experience
412 reviews
Trung
12 years of experience
Mercedes-Benz E420 V8-4.2L - Oil Change - Fremont, California
Trung arrived on-time and provided excellent service and professionalism throughout! Very relatable person with trust and mechanical skills. Was able to replace air filter and tail-light last minute and give great advice for both cars i own.

Manuel

32 years of experience
579 reviews
Manuel
32 years of experience
Mercedes-Benz E420 V8-4.2L - Oil Change - Aliso Viejo, California
Very good experience!

Excellent Rating

(24)

Rating Summary
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Number of Mercedes-Benz E420 services completed
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