Mercedes-Benz E400 Ambient Temperature Sensor (Switch) Replacement at your home or office.

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Ambient Temperature Sensor (Switch) Replacement Service

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

On average, the cost for a Mercedes-Benz E400 Ambient Temperature Sensor (Switch) Replacement is $114 with $19 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2015 Mercedes-Benz E400V6-3.5L HybridService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$152.19Shop/Dealer Price$178.99 - $220.02
2014 Mercedes-Benz E400V6-3.5L HybridService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$132.19Shop/Dealer Price$159.02 - $200.07
2013 Mercedes-Benz E400V6-3.5L HybridService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$132.19Shop/Dealer Price$159.02 - $200.07
Show example Mercedes-Benz E400 Ambient Temperature Sensor (Switch) Replacement prices

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

Modern automotive HVAC systems have advanced by leaps and bounds over those used just a few years ago. Today, many high and even mid-range cars offer automatic climate control. This function basically allows you to “set it and forget it,” allowing the car’s computer to control the heating and cooling based on your preferred interior temperature. In order to do this, the computer needs information about not only the temperature inside the car, but also the ambient temperature outside the car.

The ambient temperature sensor (switch) is located either behind the front grille or in the front bumper. Its only job is to monitor air temperature (which it does through increasing/decreasing resistance in response to temperature fluctuations). This information is transmitted to the car’s computer, which then adjusts the climate control to meet your specifications.

If the ambient temperature sensor is damaged or fails, the car’s computer will not be able to automatically control the HVAC system, and the heater and air conditioner will only work in manual mode.

Keep in mind:

  • Because of its location, the ambient temperature sensor can be easily damaged in even minor front-end collisions.
  • Sensor failure is common even without an accident.

How it's done:

  • The ambient temperature sensor switch is verified to see if it needs to be replaced
  • The defective ambient temperature sensor switch is removed
  • The new ambient temperature sensor switch is installed
  • The ambient temperature sensor switch is tested for operation
  • The vehicle is tested to ensure proper operation of the ambient temperature sensor switch

Our recommendation:

Without the information provided by the ambient temperature sensor, your car’s computer does not have sufficient data to control the interior temperature, and will revert to manual HVAC control. You’ll still be able to use your air conditioner and heater, but only in manual mode, not in auto. If you suspect a problem with the ambient temperature sensor, have it diagnosed by one of our expert mechanics and replaced if necessary.

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

  • HVAC auto mode will not work
  • HVAC auto mode produces delivers inconsistent/incorrect operation
  • HVAC will only work in manual mode
  • Outside temperatures may display incorrectly

How important is this service?

Having automatic climate control is definitely a convenience, but not critical to the operation of your vehicle. The heater will still operate to clear the windows and provide heating and cooling on manual mode. If the ambient temperature sensor is faulty, have it replaced.

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Excellent Rating

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Rating Summary
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5
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Benji

22 years of experience
277 reviews
Benji
22 years of experience
Mercedes-Benz E400 V6-3.0L Turbo - Pre-purchase Car Inspection - Scottsdale, Arizona
Mr. Tolbert was on time. I was not present for his inspection, but the dealership told me that he was very professional.

Josh

16 years of experience
78 reviews
Josh
16 years of experience
Mercedes-Benz E400 V6-3.0L Turbo - Pre-purchase Car Inspection - Naples, Florida
Awesome inspector , very detail oriented and caring. Thanks

David

13 years of experience
396 reviews
David
13 years of experience
Mercedes-Benz E400 V6-3.0L Turbo - Pre-purchase Car Inspection - Kennesaw, Georgia
David called when he arrived and called shortly after he finished inspecting the vehicle. Unfortunately, due to the inefficiency of the sales representative at the dealership, David was not able to drive the vehicle as the final phase of the inspection.

Jeffrey

16 years of experience
100 reviews
Jeffrey
16 years of experience
Mercedes-Benz E400 V6-3.0L Turbo - Oil Change - Tampa, Florida
Jeffrey was courteous and very knowledgeable about the vehicle

Excellent Rating

(5)

Rating Summary
5
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5
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Number of Mercedes-Benz E400 services completed
55+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
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