Mercedes-Benz C250 Car Thermostat 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

(3)

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

(3)

Car Thermostat Replacement Service

How much does a Car Thermostat Replacement cost?

On average, the cost for a Mercedes-Benz C250 Car Thermostat Replacement is $260 with $89 for parts and $171 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2012 Mercedes-Benz C250L4-1.8L TurboService typeCar Thermostat ReplacementEstimate$779.86Shop/Dealer Price$951.21 - $1382.56
2010 Mercedes-Benz C250V6-2.5LService typeCar Thermostat ReplacementEstimate$541.40Shop/Dealer Price$665.57 - $967.05
2011 Mercedes-Benz C250V6-2.5LService typeCar Thermostat ReplacementEstimate$551.36Shop/Dealer Price$678.01 - $986.96
2012 Mercedes-Benz C250V6-2.5LService typeCar Thermostat ReplacementEstimate$575.14Shop/Dealer Price$705.79 - $1015.08
2014 Mercedes-Benz C250L4-1.8L TurboService typeCar Thermostat ReplacementEstimate$378.18Shop/Dealer Price$459.73 - $621.41
2013 Mercedes-Benz C250L4-1.8L TurboService typeCar Thermostat ReplacementEstimate$737.86Shop/Dealer Price$909.27 - $1340.66
2015 Mercedes-Benz C250L4-1.8L TurboService typeCar Thermostat ReplacementEstimate$388.68Shop/Dealer Price$469.67 - $630.93
Show example Mercedes-Benz C250 Car Thermostat Replacement prices

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 consider replacing 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.

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

(3)

Rating Summary
3
0
0
0
0
3
0
0
0
0

Excellent Rating

(3)

Rating Summary
3
0
0
0
0
3
0
0
0
0
Number of Mercedes-Benz C250 Car Thermostat Replacement services completed
33+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

2012 Honda Odyssey vs. 2012 Mazda 5: Which One Should I Buy?
Passenger vans may be one of the most maligned classes of vehicles. From being called "Mom-mobiles" to being mocked extensively by those who have not experienced the comfort and ease of getting into and out of a van, vans just...
Symptoms of a Bad or Failing Power Steering Pressure Switch
If you notice your engine slows down, stalls, or speeds up then slows down, have your power steering pressure switch inspected and replaced.
Veteran and Military Driver Laws and Benefits in Nebraska
The The state of Nebraska offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the past, or are current active military members. License and registration tax and fee exemption...

excessive fuel consumption I put genuine spark plug and wire plug set it was 125 lm now 145 km per 20 liters?what is problem how c

Hello. It is difficult to get much better fuel economy (https://www.yourmechanic.com/article/5-essential-things-to-know-about-fuel-economy) then what you are currently getting. The only way is by driving the car easy and maintaining it. Using synthetic oil (https://www.yourmechanic.com/services/change-oil-and-filter), a high flow air filter (https://www.yourmechanic.com/services/air-filter-replacement), making...

top up washer fluid

Hi -Filling the windshield fluid reservoir (https://www.yourmechanic.com/services/windshield-wiper-refill-replacement): Inside the engine compartment, towards the front of the engine compartment, in the corner there will be a flip cap with a picture of a windshield wiper. This is the wiper fluid reservoir...

4wd engages but vehicle bucks like 4wd is slipping.

There is likely an internal issue going on within your transfer case. The most common cause of transfer case slippage is low fluid. I suggest that the transfer case fluid condition and level is checked. If the two wheel drive...

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