Mercedes-Benz GLE300d 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

(70)

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

(70)

Car Thermostat Replacement Service

How much does a Car Thermostat Replacement cost?

On average, the cost for a Mercedes-Benz GLE300d Car Thermostat Replacement is $548 with $352 for parts and $196 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2017 Mercedes-Benz GLE300dL4-2.1L Turbo DieselService typeCar Thermostat ReplacementEstimate$920.46Shop/Dealer Price$1101.37 - $1632.74
2016 Mercedes-Benz GLE300dL4-2.1L Turbo DieselService typeCar Thermostat ReplacementEstimate$966.24Shop/Dealer Price$1147.88 - $1679.81
Show example Mercedes-Benz GLE300d 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

(70)

Rating Summary
66
2
0
0
2
66
2
0
0
2

Alex

21 years of experience
160 reviews
Alex
21 years of experience
Mercedes-Benz GLE300d L4-2.1L Turbo Diesel - Brake Pads Replacement (Rear) - Saint Charles, Illinois
Great guy!

Stephen

4 years of experience
32 reviews
Stephen
4 years of experience
Mercedes-Benz GLE300d L4-2.1L Turbo Diesel - Brake Pads Replacement (Front, Rear) - Silver Spring, Maryland
Arrived on time, got to work immediately and did a very good job. Very professional!

Martin

30 years of experience
166 reviews
Martin
30 years of experience
Mercedes-Benz C300 V6-3.0L - Car Thermostat Replacement - Antioch, Tennessee
Very nice and friendly! Professional and very helpful. I am booking him for all my repairs in the future. He completed the job very quickly. Thank you Martin!

John

33 years of experience
1126 reviews
John
33 years of experience
Mercedes-Benz CLK350 V6-3.5L - Thermostat - Galveston, Texas
John is knowledgeable, friendly, and professional.

Excellent Rating

(70)

Rating Summary
66
2
0
0
2
66
2
0
0
2
Number of Mercedes-Benz Car Thermostat Replacement services completed
770+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

How to Replace a Heater Blower Motor Switch or Relay
The motor switch on your heater and air conditioning goes bad when the switch gets stuck in certain positions or will not budge at all.
P0936 OBD-II Trouble Code: Hydraulic Pressure Sensor Circuit Intermittent
P0936 means there is an issue with a circuit in the hydraulic pressure sensor, most likely due to damaged electrical components.
Symptoms of a Bad or Failing Air Bleed Housing Assembly
Common signs include coolant leaks, overheating, and a damaged bleeder valve.

Is my 1999 Jeep Grand Cherokee Laredo AWD or 2WD?

Hi there: It's difficult to tell you whether you're Jeep Grand Cherokee is 4WD, AWD or 2WD as we don't have access to the vehicle, the VIN number or your registration. The best thing you could do to determine whether...

how a code p2181 but the temp is normal

Hi there. The code, P2181, stands for Cooling System Performance. This code is meant to give a certified mechanic a starting point to begin their investigation for car problems. In most cases, the code is triggered due to either overheating...

Ac is not blowing strong, there is no cabin filter for my vehicle so it is not that

If you are referring to lack of air flow, and not inadequate cooling, the problem is due to either a restriction in the vent network or a fault with the blower or blower circuit. Restrictions are usually due to blower...

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