Mercedes-Benz 500SEC Water Pump Replacement at your home or office.

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$485.28 - $628.91

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Water Pump Replacement Estimate for Mercedes-Benz 500SEC

Mercedes-Benz 500SEC Water Pump Replacement costs $567 on average.

CarServiceEstimateShop/Dealer Price
1985 Mercedes-Benz 500SECV8-5.0LService typeWater Pump ReplacementEstimate$747.88Shop/Dealer Price$963.50 - $1292.81
1993 Mercedes-Benz 500SECV8-5.0LService typeWater Pump ReplacementEstimate$632.61Shop/Dealer Price$815.05 - $1088.38
1984 Mercedes-Benz 500SECV8-5.0LService typeWater Pump ReplacementEstimate$747.88Shop/Dealer Price$963.50 - $1292.81
Show example Mercedes-Benz 500SEC Water Pump Replacement prices

Service

What is a water pump and how does it work?

The water pump is a belt or chain-driven engine accessory bolted to the engine above the crankshaft pulley. The pump housing has an impeller that circulates engine coolant through the cooling system passageways in the engine block and cylinder head, on to the radiator, where the coolant temperature is reduced. . The lower temperature coolant then flows back to the water inlet on the engine and the water pump continues the cycle.

When to consider replacing the water pump:

  • Coolant leaks or overheating. The water pump impeller shaft is supported by a bearing. Eventually, the bearing or seal can wear and leak or damage the impeller. Many water pumps have weep holes near the pump bearing. If you see significant leakage from that weep hole, it is time to replace the pump.
  • Bearing roughness or noise. If the water pump shaft does not turn smoothly or the pump is noisy, the bearing is excessively worn. Pump replacement will be necessary.
  • Timing belt replacement. In engines where the water pump is driven by the timing belt, it is a good idea to replace the water pump at the same time the timing belt is replaced. The extensive work explains why it is always recommended to replace the water pump whenever the mechanic already has these components removed for regularly scheduled timing belt replacement.

How do mechanics replace the water pump?

  • The water pump is usually bolted to the front of the engine. The replacement procedure will vary depending on whether the pump is driven by the timing belt, the serpentine belt, or chain.
  • On a cold engine, the engine coolant is drained to a level below the water pump.
  • Components that require removing to access the water pump are removed, including the belt or chain that directly drive the pump.
  • The bolts holding the pump to the engine are removed and the pump is pulled out.
  • The gasket surface must be cleaned and the pump mounting surface inspected. A new gasket, rubber seal, or RTV sealant, as required, is installed and then the new pump. The bolts are torqued in sequence using a calibrated inch pound torque wrench.
  • For applications where the water pump is driven by the timing belt, the timing belt must be removed. Typically, this requires removal of the crankshaft pulley, timing belt covers, and timing belt tensioner. Once the new pump is installed, new coolant is added back while bleeding the cooling system of any air. The engine is then run and brought to normal operating temperature to check for leaks and ensure normal operating temperature.

Is it safe to drive with a water pump problem?

No. Should the water pump only leak a little bit, you can drive the car. However, a small leak could suddenly enlarge or the pump bearing might unexpectedly seize. Either circumstance would likely cause engine overheating. If a defective water pump causes the overheating, it is not safe to drive because of the damage to the engine.

When replacing the water pump keep in mind:

  • It is best to install a new cooling system thermostat when you install a new water pump, especially if the thermostat is old or original.
  • Completely flushing the cooling system is a good idea when you replace the water pump. Flushing can be done before or after pump replacement.
  • The rest of the cooling system should be inspected too — particularly rubber hoses, which have a limited lifetime.

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Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating


YourMechanic Mercedes-Benz Water Pump Replacement Service

Average Rating

4.7/5

Number of Reviews

26

Rating Summary
22
2
1
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1
22
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1
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1
Luis

Luis

14 years of experience
62 reviews
Luis
14 years of experience
Mercedes-Benz GL450 - Water Pump - Kissimmee, Florida
Luis arrived early and immediately began working on my 2008 Mercedes GL450. He was very friendly and explained exactly what he was going to do to repair my vehicle. When Luis had completed the repair, he also went out of his way to fill my tire ( one was extremely low on air) with air. He also recommended a few scheduled maintenance issues and gave me a quote for those. I would recommend Luis to any of my friends and family. Fred Kissimmee, Fl
Grzegorz

Grzegorz

38 years of experience
440 reviews
Grzegorz
38 years of experience
Mercedes-Benz CL600 - Water Pump - San Francisco, California
Knows what he is doing, gotta watch the oily hands in the car...
Alex

Alex

13 years of experience
405 reviews
Alex
13 years of experience
Mercedes-Benz ML350 - Water Pump - Dallas, Texas
Amazing! Alex was helpful and fast.
John

John

28 years of experience
53 reviews
John
28 years of experience
Mercedes-Benz E320 - Water Pump Replacement - Lexington, Massachusetts

Excellent Rating


YourMechanic Mercedes-Benz Water Pump Replacement Service

Average Rating

4.7/5

Number of Reviews

26

Rating Summary
22
2
1
0
1
22
2
1
0
1
Red-stars EXCELLENT RATING ON
Number of Mercedes-Benz Water Pump Replacement services completed
286+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
700+
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