Mercedes-Benz 380SLC Water Pump Replacement at your home or office.

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Water Pump Replacement Estimate for Mercedes-Benz 380SLC

Mercedes-Benz 380SLC Water Pump Replacement costs $603 on average.

CarServiceEstimateShop/Dealer Price
1981 Mercedes-Benz 380SLCV8-3.8LService typeWater Pump ReplacementEstimate$793.97Shop/Dealer Price$989.45 - $1353.19
Show example Mercedes-Benz 380SLC Water Pump Replacement prices

Water Pump Replacement 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

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YourMechanic Mercedes-Benz Water Pump Replacement Service

Average Rating

4.7/5

Number of Reviews

34

Rating Summary
29
2
2
0
1
29
2
2
0
1

Ralph

37 years of experience
139 reviews
Ralph
37 years of experience
Mercedes-Benz CL500 - Water Pump - Tacoma, Washington
Professional.

Kenneth

19 years of experience
608 reviews
Kenneth
19 years of experience
Mercedes-Benz C300 - Water Pump - Pasadena, California
Kenneth was great! He is extremely knowledgeable and thorough. He treated my car the way i would have treated it if i worked on it myself. He was very methodical with his process and triple-checked his work. What i really liked was that he didn't rely on the information i got from my dealer and he took the time to go through the entire diagnostic procedure from scratch to make sure we were not replacing an expensive part unnecessarily. He was also on time down to the minute. My experience could not have been better.

James

29 years of experience
697 reviews
James
29 years of experience
Mercedes-Benz C240 - Water Pump - Orlando, Florida
Excellent mechanic and very knowledgeable will u have again for all my mechanics needs!

Milenko

16 years of experience
87 reviews
Milenko
16 years of experience
Mercedes-Benz S500 - Water Pump - Indianapolis, Indiana
He was very knowledgeable regarding repairing my auto. Thank you so much.

Excellent Rating


YourMechanic Mercedes-Benz Water Pump Replacement Service

Average Rating

4.7/5

Number of Reviews

34

Rating Summary
29
2
2
0
1
29
2
2
0
1
Number of Mercedes-Benz Water Pump Replacement services completed
374+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
900+
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