Mercedes-Benz CLK500 Coolant Temperature Switch (Sensor) Replacement at your home or office.

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Coolant Temperature Switch (Sensor) Replacement Service

How much does a Coolant Temperature Switch (Sensor) Replacement cost?

On average, the cost for a Mercedes-Benz CLK500 Coolant Temperature Switch (Sensor) Replacement is $130 with $35 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2004 Mercedes-Benz CLK500V8-5.0LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$185.75Shop/Dealer Price$220.94 - $287.14
2003 Mercedes-Benz CLK500V8-5.0LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$165.75Shop/Dealer Price$200.97 - $267.19
2006 Mercedes-Benz CLK500V8-5.0LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$165.75Shop/Dealer Price$200.97 - $267.19
2005 Mercedes-Benz CLK500V8-5.0LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$165.75Shop/Dealer Price$200.93 - $267.12
Show example Mercedes-Benz CLK500 Coolant Temperature Switch (Sensor) Replacement prices

What is the Coolant Temperature Switch (Sensor) all about?

The coolant temperature switch, also called the coolant temperature sensor, is a switch that reads the engine coolant temperature and sends a signal to the engine control module, or ECM, to control other functions of engine operation such as the air-fuel ratio.

It is also called a switch because on some cars, it is used to turn on the engine cooling fan at a specific temperature. This aids in the engine warm-up process as well as keeping the engine at a safe operating temperature.

Keep in mind:

  • The coolant temperature switch is a crucial part of the cooling system. If faulty, it can cause severe internal engine damage due to overheating, incorrect air-fuel ratio, or incorrect ignition timing. It can also cause shorter life to the cooling fan motor or other electrical components of the cooling system.
  • Some vehicles are equipped with a separate sensor to display the engine temperature to the driver via the temperature gauge.

How it's done:

  • The Coolant Temperature Switch is verified that it needs to be replaced. The coolant is drained until the switch is exposed.

  • The defective Coolant Temperature Switch is removed by disconnecting the connector and removing it from the manifold.

  • The new Coolant Temperature Switch is installed into the mounting hole in the manifold and the electrical connector is reconnected. The coolant is then refilled.

  • The Coolant Temperature Switch is tested for operation, codes cleared, and retested to ensure all codes have been resolved.

  • The vehicle is road tested to ensure proper operation of the Cooling System.

Our recommendation:

If you suspect that your coolant temperature switch has failed, have one of our licensed mechanics come out immediately to diagnose the problem.

What common symptoms indicate you may need to replace the Coolant Temperature Switch (Sensor)?

  • Check Engine light on
  • Engine overheating
  • Cooling fan runs intermittently
  • Engine misfires, stalls, or idles roughly
  • Erratic coolant temperature

How important is this service?

This part, when faulty, could cause the fan to run intermittently or not at all, which in turns causes overheating or overuse of the cooling fan motor. Whenever overheating occurs, severe engine damage is a possibility.

The engine air-fuel ratio is what keeps it running smoothly. If the ratio gets skewed, the engine will have poor fuel economy and run poorly or not at all. The coolant temperature switch is important because it gives the ECM the information it needs to make this calculation and run the engine optimally. YourMechanic will be able to tell you if this part is performing correctly.

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Excellent Rating

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Rating Summary
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Chris

22 years of experience
2229 reviews
Chris
22 years of experience
Mercedes-Benz CLK500 V8-5.0L - Brakes, Steering and Suspension Inspection - Irvine, California
5 stars are not enough to rate Chris. He arrived on time, extremely knowledgeable, patient with my curiosity, polite answering all my questions, thorough and detailed in his work and, overall, impressive. I've been to endless auto shops and mechanics which either resulted in temporary or partial satisfaction, or even disappointment. This was my experience today with Yourmechanic.com, and, in particular, with Chris Allshouse: I made an appointment for half dozen (or so) misc inspection services for $200 to find out any and all possible issues that needed to be fixed - which Chris pointed out and explained (to a person who knows basically nothing about cars) in layman's terms. He first mentioned I needed new battery and some random fuses/etc as well as tune-up in near future (after I put some more miles on car). Of course my first worry and response was how much more will this cost me, but was delightfully surprised and immediately told not to worry because when I (a customer) pays for "inspection" service appointment, that money is credited toward any future repairs/work done on my car - LOVED IT! I only had to pay few dollars more to get some work done, new battery with install, fuses and more!! As for the tune-up, Chris explained each little thing needed in regards to the tune-up rather than just telling me I need a "tune-up" which could mean I needed a bunch of things done (that are most likely not even necessary). To sum up my review, and end my rambling, I randomly stumbled upon Yourmechanic.com a long time ago. I think It took me two years, maybe even more, to finally drop my skepticism and make an appointment with Yourmechanic.com, yet, because of Chris Allshouse, it took less than a minute to feel confident and excited to set up follow up appointment (as well as request to service my other car). Chris was very personable and easy to talk to. He was very informative and took the time to explain everything to me. I highly recommend him. For the first time, the results were different and with only one afterthought…What took me so long to make this decision!

Nazareth

27 years of experience
276 reviews
Nazareth
27 years of experience
Mercedes-Benz CLK500 V8-5.0L - Oil Change - Glendale, California
Very thorough and professional Highly recommend

James

19 years of experience
96 reviews
James
19 years of experience
Mercedes-Benz CLK500 V8-5.0L - Window Motor / Regulator Assembly Replacement (Passenger Side Rear) - Anthem, Arizona
Just had James over. He was great and was upfront. This was no bait and switch scam that others are saying. The cost was upfront and the quoted price was exact. The window regulator took longer than anticipated but didn’t up charge. Definitely will use James again and refer to family and friends.

Michael

25 years of experience
199 reviews
Michael
25 years of experience
Mercedes-Benz CLK500 V8-5.0L - Coolant is leaking - Charlotte, North Carolina
Michael was very knowledgeable and helpful. Great Mechanic!

Excellent Rating

(53)

Rating Summary
48
3
0
0
2
48
3
0
0
2
Number of Mercedes-Benz CLK500 services completed
583+
services done by our mechanics
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