Mercedes-Benz R500 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 R500 Ambient Temperature Sensor (Switch) Replacement is $136 with $41 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2007 Mercedes-Benz R500V8-5.0LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$196.37Shop/Dealer Price$234.22 - $308.38
2006 Mercedes-Benz R500V8-5.0LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$176.37Shop/Dealer Price$214.25 - $288.43
Show example Mercedes-Benz R500 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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Richard

11 years of experience
450 reviews
Richard
11 years of experience
Mercedes-Benz R500 V8-5.0L - Brake Pads Replacement (Front) - Clinton, Maryland
Wonderfuj! Richard was very professional and courteous and explained everything he had done upon completion of the job. I was very satisfied as I was the first time I use Richard.

Joseph

27 years of experience
578 reviews
Joseph
27 years of experience
Mercedes-Benz R500 V8-5.0L - Stabilizer Bar Links Replacement (Front) - Houston, Texas
Great guy and mechanic.

Daniel

8 years of experience
6 reviews
Daniel
8 years of experience
Mercedes-Benz R500 V8-5.0L - Alternator - North Charleston, South Carolina
Daniel communicated in advance of appointment, arrived a few minutes early and started work immediately after making sure of service required. He was knowledgeable, helpful and friendly. I'll request him for additional services.

Richard

11 years of experience
450 reviews
Richard
11 years of experience
Mercedes-Benz R500 V8-5.0L - Tune-up - Clinton, Maryland
Wonderfu, he was informative, skewered all questions and was very professional. I will definitely be using him again.

Excellent Rating

(12)

Rating Summary
11
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1
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Number of Mercedes-Benz R500 services completed
132+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
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