Mercedes-Benz E500 Car Thermostat Replacement Costs

Estimate price near me

Service Location

Customer Ratings

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.

See availability

Customer Ratings

Car Thermostat Replacement Service

How much does a Car Thermostat Replacement cost?

On average, the cost for a Mercedes-Benz E500 Car Thermostat Replacement is $258 with $118 for parts and $140 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
1994 Mercedes-Benz E500V8-5.0L	Service typeCar Thermostat Replacement	Estimate$398.66	Shop/Dealer Price$465.88 - $653.35
2003 Mercedes-Benz E500V8-5.0L	Service typeCar Thermostat Replacement	Estimate$506.88	Shop/Dealer Price$573.68 - $761.09
2006 Mercedes-Benz E500V8-5.0L	Service typeCar Thermostat Replacement	Estimate$506.88	Shop/Dealer Price$573.76 - $761.23
2004 Mercedes-Benz E500V8-5.0L	Service typeCar Thermostat Replacement	Estimate$497.96	Shop/Dealer Price$562.61 - $743.38
2005 Mercedes-Benz E500V8-5.0L	Service typeCar Thermostat Replacement	Estimate$506.88	Shop/Dealer Price$578.40 - $769.35

Show example Mercedes-Benz E500 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

(88)

Rating Summary

79

5

2

0

2

79

5

2

0

2

SEE REVIEWS NEAR ME

Brett

11 years of experience

197 reviews

Brett

11 years of experience

by Cedric

Mercedes-Benz E500 V8-5.0L - Oil Change - Austin, Texas

5 Star service as always...One of only two I know I can trust ...

Chris

23 years of experience

2372 reviews

Chris

23 years of experience

by Abbas

Mercedes-Benz E500 V8-5.0L - Car is not starting - Irvine, California

He was on time did the job He ruined cigaret lighter socket Some recommendation were wrong He said you need new battery but battery is fine

Richard

14 years of experience

601 reviews

Request Richard

Richard

14 years of experience

Request Richard

by wilfredo

Mercedes-Benz E500 V8-5.0L - Alternator - Henderson, Nevada

Good

Paul

24 years of experience

361 reviews

Paul

24 years of experience

by Tony

Mercedes-Benz E500 V8-5.0L - Pre-purchase Car Inspection - Tampa, Florida

Paul performed a pre-purchase inspection and was available to answer follow-up questions. I wasn't present during the inspection, so I was not able to get as much detail as if I were present.

Excellent Rating

(88)

Rating Summary

79

5

2

0

2

79

5

2

0

2

SEE REVIEWS NEAR ME

Recent articles & questions

How to Get Rid of Unwanted Odors in Your Vehicle

When buying a used car, one of the biggest issues you’ll find is unwanted smells in the interior. Odors can be...

P0931 OBD-II Trouble Code: Gear Shift Lock Solenoid Circuit High

P0931 means that there is an issue with the gear shift lock solenoid circuit due to a faulty solenoid, wiring issues, or faulty break light switch.

How Long Does a Throttle Return Spring Last?

Not Not all vehicles on the road feature an electronic throttle control (ETC), which is also called drive-by-wire. For vehicles that don't offer this system, they have a throttle cable instead that is attached to the accelerator pedal, and runs...

Stalling at stop lights

Hello there, a few different faults could be causing your 2000 Plymouth Breeze to stall. The most common would be the fuel pump (https://www.yourmechanic.com/services/fuel-pump-replacement), MAP sensor (https://www.yourmechanic.com/services/manifold-absolute-pressure-sensor-map-sensor-replacement), fuel filter (https://www.yourmechanic.com/services/fuel-filter-replacement), battery (https://www.yourmechanic.com/services/battery-replacement), alternator (https://www.yourmechanic.com/services/alternator-replacement), battery cable (https://www.yourmechanic.com/services/battery-cable-replacement), or a wiring...

Where is the oxygen sensor location for Bank 2, Sensor 1?

The passenger side of the engine is bank one sensor one and bank one sensor two. The driver's side of the engine is bank two sensor one and bank two sensor two. This is the standard for all vehicles with...

I drove with the emergency brakes on. What went wrong?

Since you didn't actually go down the road with your Parking Brake on, I doubt there was a lot of damage caused, but an inspection of the system must be done to make sure. The problem with your steering is...

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