Volkswagen Passat Car Thermostat Replacement at your home or office.

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$112.53 - $672.66

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Car Thermostat Replacement Estimate for Volkswagen Passat

Volkswagen Passat Car Thermostat Replacement costs $285 on average.

CarServiceEstimateShop/Dealer Price
1991 Volkswagen PassatL4-2.0LService typeCar Thermostat ReplacementEstimate$170.41Shop/Dealer Price$207.11 - $284.09
2009 Volkswagen PassatL4-2.0L TurboService typeCar Thermostat ReplacementEstimate$350.54Shop/Dealer Price$425.97 - $582.70
1996 Volkswagen PassatL4-2.0LService typeCar Thermostat ReplacementEstimate$230.51Shop/Dealer Price$279.40 - $391.74
1997 Volkswagen PassatV6-2.8LService typeCar Thermostat ReplacementEstimate$268.57Shop/Dealer Price$327.22 - $459.28
2003 Volkswagen PassatL4-1.8L TurboService typeCar Thermostat ReplacementEstimate$357.49Shop/Dealer Price$435.98 - $569.40
2018 Volkswagen PassatV6-3.6LService typeCar Thermostat ReplacementEstimate$240.25Shop/Dealer Price$291.17 - $405.44
2015 Volkswagen PassatL4-1.8L TurboService typeCar Thermostat ReplacementEstimate$405.77Shop/Dealer Price$481.83 - $640.57
2012 Volkswagen PassatV6-3.6LService typeCar Thermostat ReplacementEstimate$391.91Shop/Dealer Price$481.56 - $710.20
Show example Volkswagen Passat Car Thermostat Replacement prices

Service

What is an engine cooling system thermostat and how does it work?

The car's engine cooling system thermostat is a small valve within a cooling system passageway that opens and closes in response to the temperature of the circulating engine coolant. When your car is first started and the coolant is cold, the valve in the thermostat will be in the closed position, circulating the coolant flow only within the engine instead of flowing to the radiator, which allows the engine to warm up fast, promoting fuel efficiency, low emissions, and reduced engine deposits. Once the engine coolant reaches the design temperature, usually around 195 degrees, the valve will open and close as you drive in order to maintain a coolant temperature typically between 195 to 225 degrees Fahrenheit.

Thermostat

When to replace the engine cooling system thermostat:

  • Engine overheats. A thermostat with the valve stuck closed is a common cause of engine overheating. However, since there are other causes of overheating, a mechanic will thoroughly inspect the cooling system prior to condemning the thermostat. Since it is usually not known how badly the engine overheated, the mechanic will also try to determine if there is evidence that the cylinder head gasket was blown. If so, it would be repaired prior to replacing the thermostat.
  • Temperature gauge reads too low or too high. Thermostats can get sticky, causing the engine temperature to stray from the optimal range. Your dash-mounted temperature gauge will notify you of this malfunction.
  • Cooling system repairs. All thermostats eventually fail. Therefore, if the cooling system is already open for major repairs, such as water pump or radiator replacement, it is recommended to install a new thermostat simply as insurance against future breakdown.

How do mechanics replace the engine cooling system thermostat?

  • Once the engine is completely cold, the radiator cap is loosened and enough coolant is drained from the radiator so the coolant level is below the thermostat housing.
  • The thermostat housing is removed and the thermostat and gasket are extracted. Note that some cars have more than one cooling system thermostat and both might need replacement.
  • All mounting surfaces on the thermostat housing are cleaned of old gasket material. A new gasket is applied and the thermostat is re-installed in the correct orientation and with the temperature sensing cylinder facing downward towards the engine.
  • The thermostat housing bolts are tightened to original equipment manufacturer (OEM) specifications using a calibrated inch-pound torque wrench.
  • The cooling system is refilled with the appropriate coolant type and the system is fully bled of all air.
  • The car engine is run until the normal operating temperature is reached, and while taking precautions with the hot coolant, the coolant level is rechecked while confirming there is flow through the radiator — either visually or with an infrared temperature gun. This will confirm the thermostat is open. Finally, the engine is checked for leaks.

Is it safe to drive with an engine cooling system thermostat problem?

No. If it has been determined that there is a thermostat problem, it should be repaired right away. Failure to do so can cause substantial and costly damage to the engine.

When replacing the engine cooling system thermostat keep in mind:

  • Engine overheating due to causes other than a faulty thermostat, will themselves damage a thermostat. Therefore, always replace the thermostat if the engine overheats, even if the thermostat was not the initial cause of the overheating.
  • The thermostat should be replaced anytime you have major work done on the coolant system. It is convenient and costs little during such repairs and insurance against future breakdown.
  • OEM thermostats are the best ones to use and you can request your mechanic to install only the OEM thermostat. Dealer supplied, OEM thermostats are sometimes more costly but are generally higher quality and specifically engineered for your car.

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Meet some of our expert Volkswagen mechanics

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Excellent Rating


YourMechanic Volkswagen Passat Thermostat Replacement Service

Average Rating

5/5

Number of Reviews

7

Rating Summary
7
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7
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Tien

20 years of experience
746 reviews
Tien
20 years of experience
Tien was great. He serviced the car perfectly and gave me advice on other services I may need in the future. He accepted this job when others declined. He has a strong work ethic and follows through. He obviously knows his craft and did a great job on getting my daughter's car back on the road. I would recommend him without reservation. Thanks Tien for doing a great job.
2001 VOLKSWAGEN PASSAT - THERMOSTAT - DUBLIN, CALIFORNIA

Peter

40 years of experience
1059 reviews
Peter
40 years of experience
Very professional All around awesome mechanic. Excellent workmanship.
2002 VOLKSWAGEN PASSAT - THERMOSTAT - PHOENIX, ARIZONA

Richard

18 years of experience
451 reviews
Richard
18 years of experience
Great experience!
2008 VOLKSWAGEN PASSAT - THERMOSTAT - MARIETTA, GEORGIA

Robert

28 years of experience
500 reviews
Robert
28 years of experience
Robert did a good job on the car, what I like the most is the after service. He called to check on how the car is going and if I need anything. After 1k miles a minor accident happened on coolant leakage. I called him and in 20 minutes he appeared, although it was a weekend, and inspected the car, identified the problem and fixed in in 15 minutes and I was back on the road in less than 1 hour free of charge. I am really impressed with how he backs up his work. I will definitely keep using Robert's services for my car in the future.
2001 VOLKSWAGEN PASSAT - THERMOSTAT - SANTA CLARA, CALIFORNIA

Excellent Rating


YourMechanic Volkswagen Passat Thermostat Replacement Service

Average Rating

5/5

Number of Reviews

7

Rating Summary
7
0
0
0
0
7
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Red-stars EXCELLENT RATING ON
Number of Volkswagen Passat Thermostat Replacement services completed
77+
services done by our mechanics
TOTAL NUMBER OF EXPERT Volkswagen MECHANICS
600+
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