Mercury Mariner 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 Mercury Mariner Ambient Temperature Sensor (Switch) Replacement is $125 with $30 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2010 Mercury MarinerV6-3.0LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$196.37Shop/Dealer Price$226.72 - $295.25
2006 Mercury MarinerV6-3.0LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$180.75Shop/Dealer Price$212.21 - $284.04
2008 Mercury MarinerL4-2.3LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$158.67Shop/Dealer Price$184.61 - $239.88
2009 Mercury MarinerV6-3.0LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$158.67Shop/Dealer Price$184.59 - $239.84
2010 Mercury MarinerL4-2.5L HybridService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$162.21Shop/Dealer Price$189.05 - $246.99
2011 Mercury MarinerL4-2.5L HybridService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$162.21Shop/Dealer Price$189.03 - $246.96
2009 Mercury MarinerL4-2.5LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$163.67Shop/Dealer Price$189.47 - $244.64
2008 Mercury MarinerV6-3.0LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$163.67Shop/Dealer Price$189.84 - $245.30
Show example Mercury Mariner 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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Meet some of our expert Mercury mechanics

Real customer reviews from Mercury owners like you.

Excellent Rating

(157)

Rating Summary
148
7
1
0
1
148
7
1
0
1

Nolan

30 years of experience
200 reviews
Nolan
30 years of experience
Mercury Mariner V6-3.0L - Window Motor / Regulator Assembly Replacement (Passenger Side Rear) - Tucson, Arizona
Nolan was awesome! He was on time, professional and fixed my car quickly. I am not going back to the mechanic anymore!

Nathan

29 years of experience
260 reviews
Nathan
29 years of experience
Mercury Mariner V6-3.0L - Cabin Air Filter - Tulsa, Oklahoma
Excellent! will use Nathan from now on

Richard

13 years of experience
601 reviews
Richard
13 years of experience
Mercury Mariner V6-3.0L - Window Motor / Regulator Assembly Replacement (Passenger Side Rear) - Henderson, Nevada
Richard was early, quick and efficient.

Joe

15 years of experience
453 reviews
Joe
15 years of experience
Mercury Mariner V6-3.0L - Engine is misfiring - Franklin, Tennessee
He was very thorough and informative. Joe takes the time to show me what’s going on with my cars and what to look for down the road. I’ve used Joe several times and he is great!

Excellent Rating

(157)

Rating Summary
148
7
1
0
1
148
7
1
0
1
Number of Mercury Mariner services completed
1727+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

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