Mercedes-Benz ML550 Water Pump 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

(24)

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.

Customer Ratings

(24)

Water Pump Replacement Service

How much does a Water Pump Replacement cost?

On average, the cost for a Mercedes-Benz ML550 Water Pump Replacement is $499 with $309 for parts and $190 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2011 Mercedes-Benz ML550V8-5.5LService typeWater Pump ReplacementEstimate$962.81Shop/Dealer Price$1169.78 - $1672.54
2009 Mercedes-Benz ML550V8-5.5LService typeWater Pump ReplacementEstimate$902.81Shop/Dealer Price$1109.87 - $1612.70
2008 Mercedes-Benz ML550V8-5.5LService typeWater Pump ReplacementEstimate$902.81Shop/Dealer Price$1109.86 - $1612.69
2010 Mercedes-Benz ML550V8-5.5LService typeWater Pump ReplacementEstimate$902.81Shop/Dealer Price$1109.74 - $1612.48
2014 Mercedes-Benz ML550V8-4.7L TurboService typeWater Pump ReplacementEstimate$1546.63Shop/Dealer Price$1868.84 - $2729.34
2012 Mercedes-Benz ML550V8-4.7L TurboService typeWater Pump ReplacementEstimate$1328.16Shop/Dealer Price$1627.24 - $2470.41
2015 Mercedes-Benz ML550V8-4.7L TurboService typeWater Pump ReplacementEstimate$894.22Shop/Dealer Price$1087.54 - $1623.05
2013 Mercedes-Benz ML550V8-4.7L TurboService typeWater Pump ReplacementEstimate$1340.16Shop/Dealer Price$1639.81 - $2483.40
Show example Mercedes-Benz ML550 Water Pump Replacement prices

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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(24)

Rating Summary
22
2
0
0
0
22
2
0
0
0

Patrick

15 years of experience
406 reviews
Patrick
15 years of experience
Mercedes-Benz ML550 V8-5.5L - Oil Change - Richmond, Virginia
Islam was punctual, friendly, and professional. He completely his work in a timely fashion. This was my initial service doing business with you and because of the excellent service received from Islam, it won't be my last.

Jay

23 years of experience
149 reviews
Jay
23 years of experience
Mercedes-Benz ML550 V8-5.5L - Car Starter Repair - Niles, Illinois
arrived few minutes earlier then scheduled ! , friendly and finished his job on time with positive results , thanks Jay!

Ostus

8 years of experience
70 reviews
Ostus
8 years of experience
Mercedes-Benz ML550 V8-5.5L - Tail Light Lens Replacement (Passenger Side) - Decatur, Georgia
Ostus was very professional. He completed the work quickly and efficiently. He answered all my questions. I was extremely pleased with this service.

Ben

41 years of experience
1410 reviews
Ben
41 years of experience
Mercedes-Benz ML550 V8-5.5L - Power steering fluid is brown or black - Houston, Texas
Ben showed up ready to work about 20 minutes before the appointment and greeted us with a big smile. It was a big surprise to see another military person coming to help a military person. He turned out to be the best mechanic I've had to work on my ML550. Thank you Marine for coming to help the Army again. Thank you very much and God Bless!

Excellent Rating

(24)

Rating Summary
22
2
0
0
0
22
2
0
0
0
Number of Mercedes-Benz ML550 services completed
264+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

How to Buy a Good Quality Door Mirror
Side-view Side-view door mirrors are vulnerable to a wide variety of damaging events, such as side-swiping other vehicles, hitting a mailbox, even accidentally catching the side of the garage door frame as you’re backing out. Whatever the problem with your...
P0389 OBD-II Trouble Code: Crankshaft Position Sensor B Circuit Intermittent
P0389 means there is an issue with the crankshaft position sensor, likely due to the sensor having a bad wire or connector.
Mobile Mechanics 101: The Essential Mobile Car Repair Guide
What you need to know about mobile mechanics: repairs and maintenance services they provide, and pros & cons versus a repair shop.

Car won't start. Alarm keeps going off (aftermarket alarm)

Hello. From what you describe, it would appear that your vehicle has experienced some sort of electrical issues. It may be possible that the alarm system has been set off (https://www.yourmechanic.com/article/how-to-disable-a-car-alarm) or has perhaps malfunctioned, and as a result is...

Why does my engine choke at low rpm?

This may be caused by a number of things such as a bad fuel pump relay or potentially a faulty ignition coil. Ignition coils (https://www.yourmechanic.com/services/ignition-coil-replacement) are coated with a varnish-like insulation that becomes brittle over time after being stretched then...

98 mustang broke ignition will a Pat's bypass modual allow me to start car with screwdriver

If you are trying to bypass the theft system you would need a programmer and it will only let you load it if system is working and you wanted to turn it off. It will not let you disable it...

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