Mercedes-Benz SLK350 Coolant Temperature Switch (Sensor) 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

(46)

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

(46)

Coolant Temperature Switch (Sensor) Replacement Service

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

On average, the cost for a Mercedes-Benz SLK350 Coolant Temperature Switch (Sensor) Replacement is $106 with $11 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2015 Mercedes-Benz SLK350V6-3.5LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$137.87Shop/Dealer Price$161.09 - $191.38
2012 Mercedes-Benz SLK350V6-3.5LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$117.87Shop/Dealer Price$141.12 - $171.43
2009 Mercedes-Benz SLK350V6-3.5LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$117.87Shop/Dealer Price$141.12 - $171.43
2010 Mercedes-Benz SLK350V6-3.5LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$165.75Shop/Dealer Price$200.93 - $267.12
2014 Mercedes-Benz SLK350V6-3.5LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$117.87Shop/Dealer Price$141.15 - $171.48
2005 Mercedes-Benz SLK350V6-3.5LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$117.87Shop/Dealer Price$141.12 - $171.43
2013 Mercedes-Benz SLK350V6-3.5LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$122.87Shop/Dealer Price$145.88 - $176.01
2011 Mercedes-Benz SLK350V6-3.5LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$170.75Shop/Dealer Price$206.39 - $272.91
Show example Mercedes-Benz SLK350 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.

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

(46)

Rating Summary
45
1
0
0
0
45
1
0
0
0

Pardeep

21 years of experience
1078 reviews
Pardeep
21 years of experience
Mercedes-Benz SLK350 V6-3.5L - Air Filter - Fremont, California
Wasn't around to observe repairs made to the vehicle; however, Pardeep provided superior communication (tons of pictures) which has earned my trust. The vehicle he worked on is working well now.

John

27 years of experience
47 reviews
John
27 years of experience
Mercedes-Benz SLK350 V6-3.5L - Smoke from engine or exhaust - Jupiter, Florida
Thanks John!

Joseph

18 years of experience
115 reviews
Joseph
18 years of experience
Mercedes-Benz SLK350 V6-3.5L - Brake Pads Replacement (Front, Rear) - Nottingham, Maryland
Joseph is an extremely knowledgeable and professional mechanic. He is very detailed and thorough in his process and execution. He demonstrated this in his diagnosis and confirmation of the root cause to which the repair was intended to correct. Joe follows a process and set of best practices that should be a model for all mechanics. I very highly recommend Joe for his integrity and thoroughness with which he performs his job.

Artem

12 years of experience
55 reviews
Artem
12 years of experience
Mercedes-Benz SLK350 V6-3.5L - Brake Pads Replacement (Front) - Danville, California
Very quick and professional.

Excellent Rating

(46)

Rating Summary
45
1
0
0
0
45
1
0
0
0
Number of Mercedes-Benz SLK350 services completed
506+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

The Guide to Legal Car Modifications in Mississippi
ARENA Creative / Shutterstock.com Mississippi has a variety of laws regarding vehicle modifications. If you live in the state or are planning to move there, you need to make sure your modified car or truck is within...
Child Seat Safety Laws in Texas
When When children are injured, or even killed, in motor vehicle accidents, it is often because the driver is in violation of the child seat safety laws for their state. In Texas, the child seat safety laws are based in...
How to Fight a Speeding Ticket
Speeding ticket can be avoided before you get a ticket or they can be contested in court. Stay calm and be polite to beat a speeding ticket.

Problem with door locks

At first I was going to guess that the door ajar switch had failed. However, if that were the case, your interior lights would also stay illuminated. I can't find a reliable wiring diagram for your vehicle, but I believe...

I hooked jumper cables up backwards now my truck won't fire off without spraying starter fluid

Determine if the fuel pump is actually running. The fuel pump should run momentarily at key on to pressurize the system. If it isn't running, you have an electrical problem. If the pump runs momentarily as is required at key...

Hey! I purchased a Hyundai [Sonata](/topics-sonata/) SE 2016, and it came up on dashboard that Service in 16 days. What is that mean and what should I do?

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