Mercedes-Benz CL55 AMG 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

(7)

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

(7)

Car Thermostat Replacement Service

How much does a Car Thermostat Replacement cost?

On average, the cost for a Mercedes-Benz CL55 AMG Car Thermostat Replacement is $283 with $112 for parts and $171 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2002 Mercedes-Benz CL55 AMGV8-5.5LService typeCar Thermostat ReplacementEstimate$430.62Shop/Dealer Price$531.54 - $733.02
2006 Mercedes-Benz CL55 AMGV8-5.5L TurboService typeCar Thermostat ReplacementEstimate$394.62Shop/Dealer Price$495.62 - $697.16
2005 Mercedes-Benz CL55 AMGV8-5.5L TurboService typeCar Thermostat ReplacementEstimate$394.62Shop/Dealer Price$495.61 - $697.15
2003 Mercedes-Benz CL55 AMGV8-5.5L TurboService typeCar Thermostat ReplacementEstimate$394.62Shop/Dealer Price$495.51 - $696.97
2001 Mercedes-Benz CL55 AMGV8-5.5LService typeCar Thermostat ReplacementEstimate$394.62Shop/Dealer Price$495.68 - $697.28
2004 Mercedes-Benz CL55 AMGV8-5.5L TurboService typeCar Thermostat ReplacementEstimate$394.62Shop/Dealer Price$495.61 - $697.15
Show example Mercedes-Benz CL55 AMG 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

(7)

Rating Summary
7
0
0
0
0
7
0
0
0
0

Donald

9 years of experience
56 reviews
Donald
9 years of experience
Mercedes-Benz CL55 AMG V8-5.5L - AC Compressor Relay - Garland, Texas
He was on time and very professional.

Kyle

13 years of experience
145 reviews
Kyle
13 years of experience
Mercedes-Benz CL55 AMG V8-5.5L Turbo - Oil Change - Grand Prairie, Texas
Kyle informed me when he called to reschedule. Changed my oil in under 15 mins. Will definitely seek him again for any maintenance work.

Jesse

9 years of experience
12 reviews
Jesse
9 years of experience
Mercedes-Benz CL55 AMG V8-5.5L Turbo - Car will not turn over - Bradenton, Florida
Very friendly and knowledgeable, I can only recommend Jesse.

Mitchell

7 years of experience
30 reviews
Mitchell
7 years of experience
Mercedes-Benz CL55 AMG V8-5.5L Turbo - Serpentine/Drive Belt Replacement - New Orleans, Louisiana
Mitchell was prompt in making the appointment. I observed him at work and he is a consummate professional and very thorough. I am well pleased with Mitchell’s work.

Excellent Rating

(7)

Rating Summary
7
0
0
0
0
7
0
0
0
0
Number of Mercedes-Benz CL55 AMG services completed
77+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

What Does the Switch on the Bottom of the Rearview Mirror Do?
Auto Auto mirrors provide essential visibility to the rear and sides of a vehicle. However, they can also be sources of discomfort – being blinded by the glare of headlights behind you through your rearview mirror is no fun, and...
The Guide to Colored Curb Zones in Alabama
Alabama Alabama parking laws: understanding the basics Having a license to drive in Alabama is a privilege and a responsibility. While safety behind the wheel while driving is certainly important, drivers also need to remember that they are responsible for...
How to Fix Streaky Wax On a Car
Whenever Whenever you wax your car, you expect the end result to be a clean, bright finish that protects your paint. Even though applying wax to your car’s finish is a pretty straightforward process, it can turn out poorly if...

How do I turn the compass on or off?

The compass in the car will tell you which direction you’re traveling. You can turn it on or off. Press Auto on the rearview mirror for three seconds or longer to turn the compass on or off. Press Auto and...

truck wont start , changed distributor cap and rotor

Hello. I would need to know what size engine that you have in your truck to be able to pinpoint what the issue may be. If it is getting spark then I would usually start by checking the fuel pressure....

anti-theft

Hi Dennis. Thanks for contacting us today. In most cases, when an inconsistent security code issue like this pops up, it's due to a fault with the anti-theft software in the ECU. Typically a GM dealership can scan the ECU...

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