Audi A4 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 Audi A4 Ambient Temperature Sensor (Switch) Replacement is $118 with $23 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2005 Audi A4L4-2.0L TurboService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$160.97Shop/Dealer Price$189.97 - $237.58
2016 Audi A4L4-2.0L TurboService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$221.95Shop/Dealer Price$271.22 - $379.59
1998 Audi A4V6-2.8LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$309.35Shop/Dealer Price$380.47 - $554.39
2003 Audi A4V6-3.0LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$140.97Shop/Dealer Price$169.96 - $217.56
2008 Audi A4L4-2.0L TurboService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$140.97Shop/Dealer Price$170.02 - $217.68
2009 Audi A4L4-2.0L TurboService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$140.97Shop/Dealer Price$170.00 - $217.63
2004 Audi A4V6-3.0LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$145.97Shop/Dealer Price$174.76 - $222.21
2010 Audi A4L4-2.0L TurboService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$145.97Shop/Dealer Price$175.41 - $223.35
Show example Audi A4 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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Andrew

26 years of experience
72 reviews
Andrew
26 years of experience
Audi A4 L4-2.0L Turbo - Oil Change - Apex, North Carolina
Great mechanic! On time and fast. Andrew did a great job!

Mario

7 years of experience
135 reviews
Mario
7 years of experience
Audi A4 L4-2.0L Turbo - Oil Change - Richmond, Virginia
Mario arrived on time and was ready to work on an early cold Saturday morning. Mario was very professional and was very efficient and knowledgeable. I will for sure be requesting his services in the future.

Samuel

13 years of experience
15 reviews
Samuel
13 years of experience
Audi A4 L4-1.8L Turbo - Turn Signal Bulb Replacement (Front) - Pearland, Texas
Was 15min early which was fine. Did the job needed out in the freezing cold.

Chris

22 years of experience
2223 reviews
Chris
22 years of experience
Audi A4 L4-1.8L Turbo - Crankcase Vent Filter - Santa Ana, California
Early, professional, and extremely knowledgeable. The best mechanic I've encountered!

Excellent Rating

(388)

Rating Summary
356
15
2
2
13
356
15
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13
Number of Audi A4 services completed
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services done by our mechanics
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