BMW 525iT 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

(10)

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

(10)

Coolant Temperature Switch (Sensor) Replacement Service

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

On average, the cost for a BMW 525iT Coolant Temperature Switch (Sensor) Replacement is $136 with $41 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1993 BMW 525iTL6-2.5LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$196.19Shop/Dealer Price$233.99 - $308.02
Show example BMW 525iT 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 BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(10)

Rating Summary
9
0
0
1
0
9
0
0
1
0

Rusty

23 years of experience
522 reviews
Rusty
23 years of experience
BMW 528i L4-2.0L Turbo - Coolant Temperature Switch (Sensor) - Mansfield, Texas
Amazingly cheerful  and

Augustine

12 years of experience
129 reviews
Augustine
12 years of experience
BMW X1 L4-2.0L Turbo - Coolant Temperature Switch (Sensor) - Albuquerque, New Mexico
Augustine was very helpful and transparent. He is very knowledgeable and he got the job done. I am very happy.

Clarissa

27 years of experience
239 reviews
Clarissa
27 years of experience
BMW X3 L6-3.0L - Coolant Temperature Switch (Sensor) - Philadelphia, Pennsylvania
Clarissa is thorough and efficient! She will definitely be my regular mechanic.

Jose

12 years of experience
72 reviews
Jose
12 years of experience
BMW X3 L4-2.0L Turbo - Coolant Temperature Switch (Sensor) - Moreno Valley, California
He was on time. He fixed problem and gave recommendations.

Excellent Rating

(10)

Rating Summary
9
0
0
1
0
9
0
0
1
0
Number of BMW Coolant Temperature Switch (Sensor) Replacement services completed
110+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

Recent articles & questions

What Causes Hoses to Become Swollen?
Your radiator serves an essential purpose: it helps to eliminate the heat collected by the engine coolant from the engine. Of...
Symptoms of a Bad or Failing Pitman Arm
If your steering wheel feels loose, you loose the ability to steer, or the car starts wandering on the road, you may need to replace the pitman arm.
B1924 OBD-II Trouble Code: Air Bag Internal Diagnostic Monitor Fault or System Disarm Fault
B1924 means there is a problem with the air bag system circuit, likely due to a defective electrical component or faulty diagnostic monitor.

How many hours should it take to replace a left rear axle on a 2007 freightliner, century series?

Hi there. Your question depends on whether the axle and flange gasket was replaced with an oil top off or the axle, flange gasket, wheel bearings, brakes, wheel seal, and gear oil was replaced. If the axle and flange gasket...

My cars RPMs rev up and down

Hello, and thank you for writing in. Typically when the engine behaves like this, you are looking at an air issue. You will want to focus in on the air intake, mainly the throttle and throttle position sensor. You may...

Car makes a loud grinding noise when I try to start it, would this be the starter or timing chain?

You should try and turn the engine manually on front of crankshaft pulley to see if engine is seized. If engine turns over by hand then problem will most likely be the starter. If you cannot turn motor then it...

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