Mercedes-Benz 300SL Car Thermostat Replacement at your home or office.

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Car Thermostat Replacement Estimate for Mercedes-Benz 300SL

Mercedes-Benz 300SL Car Thermostat Replacement costs $113 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$112 to $122
Labor: $70 -$80
Parts: $42
Average Dealer price
$178
Average Shop price
$136
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Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
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CarServiceEstimateShop/Dealer Price
1993 Mercedes-Benz 300SLL6-3.0LService typeCar Thermostat ReplacementEstimate$154.98Shop/Dealer Price$201.64 - $284.43
1990 Mercedes-Benz 300SLL6-3.0LService typeCar Thermostat ReplacementEstimate$154.98Shop/Dealer Price$201.76 - $284.64
1991 Mercedes-Benz 300SLL6-3.0LService typeCar Thermostat ReplacementEstimate$154.98Shop/Dealer Price$201.68 - $284.50
1992 Mercedes-Benz 300SLL6-3.0LService typeCar Thermostat ReplacementEstimate$154.98Shop/Dealer Price$201.71 - $284.56
Show example Mercedes-Benz 300SL Car Thermostat Replacement prices

Car Thermostat Replacement Service & Cost

What is the Thermostat all about?

A thermostat is part of the cooling system that regulates the temperature of the coolant in the engine. The thermostat is a metal valve that has a temperature sensor built in. It can either be open or closed. When the thermostat is closed, it keeps the coolant in the engine. When the engine gets to a predetermined temperature, the thermostat opens allowing coolant to circulate. The circulation of coolant prevents the engine from overheating. If the thermostat fails to open, the car will overheat. If the thermostat fails to close, the engine may never reach the optimal temperature (~220F). The thermostat opens and closes many times when the car engine is running. It is the most common component in the cooling system to fail, causing the car to overheat.

Thermostat

Keep in mind:

  • The entire cooling system should be inspected when the thermostat is replaced.
  • When the thermostat is replaced, the gaskets and housings should be cleaned thoroughly.

How it's done:

  • Scan the computer in the car for codes.
  • Verify that the car is overheating.
  • Remove and replace thermostat if it is faulty.
  • Clean old gasket surfaces.
  • Remove corrosion from housings/hose connections.
  • Fill cooling system.
  • Check for leaks and proper operating temperatures.

Our recommendation:

Have the thermostat replaced anytime you have major work done on the coolant system.

What common symptoms indicate you may need to replace the Thermostat?

  • Engine overheats.
  • Car heater does not work.
  • Check Engine light is on.

How important is this service?

A vehicle’s engine gets extremely hot, and in order to avoid overheating, it needs to be properly cooled. The engine is cooled by a viscous liquid called coolant. The coolant is circulated around the engine, where it absorbs heat, which allows the engine to remain at a safe temperature. A fan then lowers the temperature of the coolant, which allows it to run back through the engine once more. The thermostat is responsible for determining when the coolant needs to enter the engine. The thermostat determines the temperature of the engine, and then acts as a valve that allows coolant in, or keeps coolant out. When the engine is too cold, the thermostat keeps coolant out; when the engine is too hot, it lets coolant in.

When the thermostat stops working, it will either get stuck open or closed. If the thermostat is stuck open, the coolant will constantly flow through the engine, absorbing too much heat, and the engine will never reach optimal running temperature. If the thermostat is stuck closed, the coolant will never circulate through the engine, and your engine will quickly overheat, which can cause severe damage.

Fast and easy Car Thermostat Replacement service at your home or office.

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Mercedes-Benz Repair

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Number of Reviews

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Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Damian

7 years of experience
86 reviews
Damian
7 years of experience
Damian was efficient, very knowledgeable, and quick. Thank you again.
2006 MERCEDES-BENZ E350 - OIL CHANGE - CAPITOL HEIGHTS, MARYLAND

Ross

14 years of experience
44 reviews
Ross
14 years of experience
Ross was awesome! Called me from his cell to confirm appointment the night before. Showed up on time, even though I live deep in the woods. He showed me how to flush my brake lines, talked to me about other problems my car might have but without up-selling me on the work to be done. He performed a 1 hour job in 35 minutes, and he did it well. I have a notoriously difficult Mercedes model. Ross knew his way around it. MUCH better service than I have had at even Master Mechanics. I saved his number and WILL be booking him again. Also, I will be recommending to friends.
2001 MERCEDES-BENZ ML430 - BRAKE SYSTEM FLUSH - SANTA ROSA, CALIFORNIA

Gerson

6 years of experience
33 reviews
Gerson
6 years of experience
The absolute best customer service. He was prompt and very professional. I had this done at my work and no one ever knew he was even here. Everything was left pristine. Definitely will use him again. I give him a 5 out of 5 star rating. Thank you Gerson for your superior service!! Teresa Tule
2016 MERCEDES-BENZ C300 - OIL CHANGE - HOUSTON, TEXAS

Eduardo

18 years of experience
28 reviews
Eduardo
18 years of experience
While Eduardo was quick and seemingly thorough, my vehicle now creates a loud squeaking/chirping noise that is easily replicable when traveling over any sort of bump even at extremely slow speeds. Also, upon driving my vehicle for the first time after the service there was a coolant level warning on the display about five minutes into driving. I have never had any of these issues before. My service consisted of an oil change and changing all four brake pads. To be completely fair, Eduardo may have been unfamiliar with the make and model of my vehicle or it could've been a simple mistake. I'm simply sharing my personal experience, which happened to be negative.
2003 MERCEDES-BENZ C230 - OIL CHANGE - RICHMOND, VIRGINIA
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceEstimateShop/Dealer Price
1993 Mercedes-Benz 300SLL6-3.0LService typeCar Thermostat ReplacementEstimate$154.98Shop/Dealer Price$201.64 - $284.43
1990 Mercedes-Benz 300SLL6-3.0LService typeCar Thermostat ReplacementEstimate$154.98Shop/Dealer Price$201.76 - $284.64
1991 Mercedes-Benz 300SLL6-3.0LService typeCar Thermostat ReplacementEstimate$154.98Shop/Dealer Price$201.68 - $284.50
1992 Mercedes-Benz 300SLL6-3.0LService typeCar Thermostat ReplacementEstimate$154.98Shop/Dealer Price$201.71 - $284.56
Show example Mercedes-Benz 300SL Car Thermostat Replacement prices

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