Mercedes-Benz C320 Water Pump Replacement at your home or office.

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Water Pump Replacement Service

How much does a Water Pump Replacement cost?

On average, the cost for a Mercedes-Benz C320 Water Pump Replacement is $797 with $265 for parts and $532 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2003 Mercedes-Benz C320V6-3.2LService typeWater Pump ReplacementEstimate$1118.52Shop/Dealer Price$1274.84 - $1689.94
2004 Mercedes-Benz C320V6-3.2LService typeWater Pump ReplacementEstimate$1084.28Shop/Dealer Price$1228.86 - $1635.14
2005 Mercedes-Benz C320V6-3.2LService typeWater Pump ReplacementEstimate$1084.28Shop/Dealer Price$1229.03 - $1635.44
2001 Mercedes-Benz C320V6-3.2LService typeWater Pump ReplacementEstimate$1084.28Shop/Dealer Price$1229.02 - $1635.42
2002 Mercedes-Benz C320V6-3.2LService typeWater Pump ReplacementEstimate$1084.28Shop/Dealer Price$1238.81 - $1652.57
Show example Mercedes-Benz C320 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.

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Pardeep

22 years of experience
1277 reviews
Pardeep
22 years of experience
Mercedes-Benz C320 V6-3.2L - Water Pump - Campbell, California
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Robert

19 years of experience
68 reviews
Robert
19 years of experience
Mercedes-Benz C320 V6-3.2L - Power door locks are not working - Phoenix, Arizona
I have had a bad experience with Your Mechanic from the very beginning. I'm a first time customer. I scheduled my very first appt. with Your Mechanic. 30 min past the scheduled time YM was suppose to be at my place, I get a text saying he won't be able to make it. So I rescheduled for the next available time which was 3 days later. I get another cancellation notice from YM. At this point I was really disappointed and frustrated I had made special arrangements to be available for both scheduled appts. Finally He shows up 30 min past the scheduled appt, He does a inspection on my issue, looks at it then tells me he cant work on it wrong part.. So he finished up. He told me that I should only be charged $25 or $30 dollars for this appt. He spent less than an hour. He assured me he put in his notes to YM to adjust my account accordingly. Well of course my account was not adjusted to reflect that amount. So I called customer service at YM and spoke with Paul Who put in for a refund and expedite my claim. Said it would be 24-48 hours. before I would receive a response from YM management. I have had to go through so much unnecessary drama just to have a mechanic look at my car issues. To be honest this is not a very good first impression I have of YM. Robert was nice and seem to know what needed to be done for my car. But my experience with YM has been bad from the start and I am not pleased at all. I just would like my refund and that will be all I would like to hear from YM.

Alex

24 years of experience
464 reviews
Alex
24 years of experience
Mercedes-Benz C320 V6-3.2L - Brake Rotor/Disc Replacement (Rear) - Frisco, Texas
Very positive.

Joel

22 years of experience
987 reviews
Joel
22 years of experience
Mercedes-Benz C320 V6-3.2L - Brake Pads Replacement (Front) - Jacksonville, Florida
Friendly but professional, very speedy and finished services faster than quoted and helped give additional estimates. Will use again.

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