Car Thermostat Replacement at your home or office in San Antonio.

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customer ratings

(1,972)

$141.88 - $613.47

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Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

customer ratings

(1,972)


Recent Car Thermostat Replacement reviews in San Antonio

Excellent Rating

(1,972)

Rating Summary
1,860
60
9
7
36
1,860
60
9
7
36

Allen

36 years of experience
471 reviews
Allen
36 years of experience
Allen was extremely friendly, accommodating, knowledgable, and honest. His communication and follow-up to ensure the vehicle was running properly following repairs, was exceptional. I would highly recommend Allen.
Allen is an amazing Mechanic, extremely professional and I have never met a mechanic who goes out of his way to make sure that I am happy with the work he is doing and what he is doing. I just wanted to let you know that you have an amazing employee in Allen and I believe you should make sure that you never lose him!!!

Chris

15 years of experience
312 reviews
Chris
15 years of experience
My first time using yourmechAnic. And Chris is On time, professional, quick and knowledgeable mechanic. Great service overall..
Chriss takes the time to figure out exactly what is wrong and goes above and beyond on ensuring you know what the problem is and what he will do to fix it as well as any recommendations for future things that will need to be serviced. He is extremely kind and humble.

Pete

16 years of experience
192 reviews
Pete
16 years of experience
Pete was very busy on the day that he was scheduled to come to our residence. But he tested us in advance letting us know of the delay. Outstanding service!

Jeffrey

27 years of experience
870 reviews
Jeffrey
27 years of experience
Very professional and timely

Charles

34 years of experience
342 reviews
Charles
34 years of experience
Great communication. Great service!

James

31 years of experience
570 reviews
James
31 years of experience
James was timely, friendly and cooperative. He provided the service in a timely manner and drove the vehicle to confirm its satisfactory repair. I trust that the P0128 readout doesn't reoccur.

Alex

16 years of experience
435 reviews
Alex
16 years of experience
Alex is one of the most capable mechanic that i have ever met. His technical skills and knowledge is supreme. His costumer service skills is Second to none. He is the Best. Thanks Alex, I will not hesitate for a second to call and ask for him to work on my car. Kind Regards, Gus

Breck

20 years of experience
681 reviews
Breck
20 years of experience
Excellent service! Time efficient, courteous and professional. Thanks Breck!

Jonathan

22 years of experience
304 reviews
Jonathan
22 years of experience
Johnathan was awesome! Very friendly and very thorough. Will be using him in the future!

Shaun

10 years of experience
542 reviews
Shaun
10 years of experience
Very dedicated.... Knows his job.... He worked on my truck.... And did an awesome job.... That's why I got him to work on my car.... Thanks Shaun


How much does Car Thermostat Replacement cost in San Antonio?

It depends on the type of car you drive and the auto repair shop you go to in San Antonio. Our mechanics in San Antonio are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office in San Antonio.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2009 GMC Sierra 1500 $214 $102.37 $111.98 15% $252.87
2007 Volkswagen Golf City $327 $71.43 $255.96 21% $415.43
2010 Dodge Charger $235 $91.16 $143.98 17% $284.66
2016 BMW 328d $284 $155.74 $127.98 13% $327.74
2010 Mercedes-Benz CL550 $502 $357.56 $143.98 8% $551.06
2013 Mercedes-Benz SLK55 AMG $395 $275.47 $119.98 9% $436.72

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Car Thermostat Replacement 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 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


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