Mercury Mariner 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

(157)

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

(157)

Water Pump Replacement Service

How much does a Water Pump Replacement cost?

On average, the cost for a Mercury Mariner Water Pump Replacement is $217 with $113 for parts and $104 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2008 Mercury MarinerL4-2.3L HybridService typeWater Pump ReplacementEstimate$394.95Shop/Dealer Price$467.44 - $653.41
2006 Mercury MarinerL4-2.3L HybridService typeWater Pump ReplacementEstimate$366.95Shop/Dealer Price$439.46 - $625.45
2009 Mercury MarinerL4-2.5L HybridService typeWater Pump ReplacementEstimate$366.95Shop/Dealer Price$439.46 - $625.45
2008 Mercury MarinerL4-2.3LService typeWater Pump ReplacementEstimate$338.45Shop/Dealer Price$407.93 - $591.65
2009 Mercury MarinerL4-2.5LService typeWater Pump ReplacementEstimate$338.45Shop/Dealer Price$407.98 - $591.72
2008 Mercury MarinerV6-3.0LService typeWater Pump ReplacementEstimate$586.26Shop/Dealer Price$708.11 - $1033.10
2005 Mercury MarinerL4-2.3LService typeWater Pump ReplacementEstimate$373.95Shop/Dealer Price$446.27 - $632.12
2010 Mercury MarinerV6-3.0LService typeWater Pump ReplacementEstimate$528.64Shop/Dealer Price$634.26 - $909.60
Show example Mercury Mariner 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 Mercury mechanics

Real customer reviews from Mercury owners like you.

Excellent Rating

(157)

Rating Summary
148
7
1
0
1
148
7
1
0
1

Gerron

34 years of experience
185 reviews
Gerron
34 years of experience
Mercury Mariner V6-3.0L - Brake Pads Replacement (Front) - Hillsboro, Oregon
Right on time . He got right to work and did a great  job. Would use again on my next repair.

Chuck

10 years of experience
347 reviews
Chuck
10 years of experience
Mercury Mariner V6-3.0L - Strut Assembly Replacement (Front) - Dallas, Texas
Chuck is knowledgeable, courteous, and completed the job quickly

Jerome

24 years of experience
415 reviews
Jerome
24 years of experience
Mercury Mariner V6-3.0L - Brake Rotor/Disc Replacement (Front) - Owings Mills, Maryland
I requested Jerome based on experience and reviews. He arrived on time with all parts. He was knowledgable, explained and showed indication for replacement parts. There was a small problem noted on test drive that was promptly corrected. I am very satisfied with the experience!

Maurice

32 years of experience
17 reviews
Maurice
32 years of experience
Mercury Mariner L4-2.3L Hybrid - Car is getting worse gas mileage - Takoma Park, Maryland
Very good experience.

Excellent Rating

(157)

Rating Summary
148
7
1
0
1
148
7
1
0
1
Number of Mercury Mariner services completed
1727+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

Recent articles & questions

How to Live in Your Car for a Short Time
So So you’ve just moved to a new city and your apartment won’t be ready for a month. Or maybe it’s summer break and you just haven’t been able to find a place. Or you want to see what it’s...
How to Keep Your Car Running Well in Cold Weather
Cold weather affects how a car performs. Get snow tires, check your car battery, wash and wax your car, and check car fluids to help winter driving.
How to Replace a Console Shift Indicator Bulb
Console shift indicator bulbs allow you to view your gears in the dark. This bulb can either last the life of the car or break unexpectedly.

Car exhaust loud when accelerating

The exhaust problem is likely from your flex pipe. The flex pipe allows your engine to move while the exhaust is stationary. It is a common repair which requires a welder and tools. The oil leak needs to be cleaned...

My car, 2015 Nissan Sentra, is not letting me go above 60 MPH on highway and nothing over 30 on streets.

Hi there. Quite often when you have a situation where the car all of the sudden stops accelerating above 60, it will be caused by a few different component failures. Modern cars like your 2015 Sentra have a very complex...

I have a Chrysler Sebring 2010 the red lighting bolt light came on and so did the traction light

In Chrysler speak, the red lightning bolt usually means a charging system or electrical malfunction. Your other lights and issues might come from the same cause. If the system voltage gets too low or too high, all sorts of things...

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