Audi S3 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

(12)

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

(12)

Car Thermostat Replacement Service

How much does a Car Thermostat Replacement cost?

On average, the cost for a Audi S3 Car Thermostat Replacement is $404 with $208 for parts and $196 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2016 Audi S3L4-2.0L TurboService typeCar Thermostat ReplacementEstimate$1310.56Shop/Dealer Price$1483.50 - $1897.02
2017 Audi S3L4-2.0L TurboService typeCar Thermostat ReplacementEstimate$1263.71Shop/Dealer Price$1399.38 - $1784.95
2015 Audi S3L4-2.0L TurboService typeCar Thermostat ReplacementEstimate$1263.71Shop/Dealer Price$1414.02 - $1810.56
2018 Audi S3L4-2.0L TurboService typeCar Thermostat ReplacementEstimate$620.55Shop/Dealer Price$727.19 - $1041.26
Show example Audi S3 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 Audi mechanics

Real customer reviews from Audi owners like you.

Excellent Rating

(12)

Rating Summary
11
1
0
0
0
11
1
0
0
0

Fabrice

21 years of experience
134 reviews
Fabrice
21 years of experience
Audi S3 L4-2.0L Turbo - Brake Pads Replacement (Front, Rear) - Longwood, Florida
Knowledgeable and professional mechanic. Only complaints would be the lack of correct equipment for the job without giving much notice, and the fact that he was 4 hours behind schedule. Other than that the job was completed competently and correctly.

John

10 years of experience
12 reviews
John
10 years of experience
Audi S3 L4-2.0L Turbo - Oil Change - Cliffside Park, New Jersey
John was very professional, well experienced, and a very nice guy. John went out of his way to make sure everything was properly set up before he started working. From start to finish, he was excellent. I Recommend his services and will definitely be calling him again for any future repairs my car may need.

Manuel

33 years of experience
590 reviews
Manuel
33 years of experience
Audi S3 L4-2.0L Turbo - Pre-purchase Car Inspection - Costa Mesa, California
On time and great report for my pre-purchase car inspection.

Farnaz

21 years of experience
80 reviews
Farnaz
21 years of experience
Audi S3 L4-2.0L Turbo - Oil Change - Huntington Beach, California
Very good service and communication. He was on time polite and his work was clean everything you could ask for.

Excellent Rating

(12)

Rating Summary
11
1
0
0
0
11
1
0
0
0
Number of Audi S3 services completed
132+
services done by our mechanics
TOTAL NUMBER OF EXPERT Audi MECHANICS
800+
experts on our platform

Recent articles & questions

How to Move Your Cell Phone Contact List to Your Prius
Talking Talking on your cellphone while driving is a dangerous prospect, unless you use a hands-free device to talk and even when trying to dial the phone number you need. If you sync your cell phone’s contact list to your...
Should I Buy Electric Automotive Power Tools?
Automotive technician jobs require electric power tools, which are user-friendly and easy to transport, but can be expensive.
P0283 OBD-II Trouble Code: Cylinder 8 Injector Circuit High
P0283 P0283 code definition The P0283 Trouble Code refers to cylinder 8 injector circuit high. What the P0283 code means If the P0283 code appears and is stored on your vehicle, it means that the engine cylinder 8 is not...

Air conditioner causing car to overheat

We need to determine if your vehicle is actually overheating, or if the gage is just reading incorrectly. If your vehicle is overheating; you will no doubt have boil over from the radiator or reservoir. The fact that your gage...

Bucking during acceleration.

Hi there. It does sound like you have several different problems going on here. The bucking is usually the result of a failure in the throttle position sensor (https://www.yourmechanic.com/services/throttle-body-replacement) or the air flow meter. Both of these will commonly cause...

Are common repairs on Mitsubishi Outlanders more expensive than on most cars?

Hi there: This is a very good question but very difficult to answer. If by "more expensive" you're referring to routine maintenance and service the answer would be "possibly." Parts cost is typically the determining factor of service and maintenance...

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 (844) 997-3624 · hi@yourmechanic.com