Audi A5 Quattro Oxygen Sensor Replacement at your home or office.

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Oxygen Sensor Replacement Estimate for Audi A5 Quattro

Audi A5 Quattro Oxygen Sensor Replacement costs $294 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$180 to $797
Labor: $70 -$544
Parts: $110 -$253
Average Dealer price
$314 to 1138
Average Shop price
$221 to 883
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
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CarServiceYourMechanic PriceShop/Dealer Price
2017 Audi A5 QuattroL4-2.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$575.48Shop/Dealer Price$716.37 - $1106.37
2009 Audi A5 QuattroV6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$587.88Shop/Dealer Price$746.09 - $1140.31
2018 Audi A5 QuattroL4-2.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$395.58Shop/Dealer Price$491.52 - $746.61
2012 Audi A5 QuattroL4-2.0L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$407.54Shop/Dealer Price$517.41 - $789.68
2013 Audi A5 QuattroL4-2.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$414.68Shop/Dealer Price$526.28 - $803.86
2012 Audi A5 QuattroL4-2.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$414.68Shop/Dealer Price$526.25 - $803.81
2009 Audi A5 QuattroV6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$696.76Shop/Dealer Price$925.77 - $1221.70
2016 Audi A5 QuattroL4-2.0L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$407.54Shop/Dealer Price$517.45 - $789.75
Show example Audi A5 Quattro Oxygen Sensor Replacement prices

Oxygen Sensor Replacement Service & Cost

What is the Oxygen Sensor all about?

With each new model year, manufacturers are adding more oxygen sensors to better manage engine operation. Some high performance engines have an oxygen sensor for each cylinder as well as one for the rear of each catalytic convertor. The sensors are located either underneath the hood or underneath the car. The oxygen sensors are connected (screwed) to the exhaust pipe, either in front or back of the catalytic converter. The front (upstream) sensors measure the amount of oxygen in the exhaust system. The purpose of the front oxygen sensor(s) is to measure how rich or lean the gases are as the gases exit the combustion chamber. Depending upon whether the exhaust gas is lean (high in oxygen content) or rich (low in oxygen content), the amount of fuel entering the engine is adjusted by the engine management computer to try and maintain an ideal mixture that produces the lowest emissions output from the catalytic convertor.

Rear (downstream) sensors are located behind the catalytic converter. The purpose of the rear oxygen sensor(s) is to monitor the oxygen content of the exhaust gases leaving the catalytic convertor.

If one or more of the oxygen sensors are faulty, your car may not pass the emissions test. If you drive your car with a faulty oxygen sensor, you may get poor gas mileage and it can damage the catalytic converter.

Oxygen Sensor-MATROX-1

Keep in mind:

  • Many oxygen sensors are damaged by leaking oil or coolant. If that is the case, the cause of that leak needs to be identified and repaired, or else the replacement oxygen sensor will be damaged as well.
  • New vehicles require specific oxygen sensors, and not the universal sensors that were common prior to 1996.

How it's done:

  • Scan the computer in the car for codes.
  • Inspect for vacuum leaks and holes in the exhaust system.
  • Remove and replace the oxygen sensor if it is bad.
  • Check electrical connections.
  • Check for proper operation of oxygen sensors.
  • Clear diagnostic codes.
  • Test drive car.

Our recommendation:

Keep up with the tune-ups. If check engine light is on, don't drive the car too long without getting it inspected. If check engine light is flashing, pull over and get the car towed to avoid costly repairs. Ask the mechanic to inspect the vacuum hoses and leaks in the exhaust system. If the vacuum hose or exhaust system is leaking, it will display an oxygen sensor fault code. Replacing an oxygen sensor may not fix the problem.

What common symptoms indicate you may need to replace the Oxygen Sensor?

  • Check Engine light is on.
  • Car is getting poor gas mileage.
  • Emission test fails.

How important is this service?

Your vehicle has multiple oxygen sensors, and they all help the car run optimally. The front sensors measure how much oxygen is in the exhaust stream to measure how rich or lean the gases leaving the gas chamber are. The rear sensors measure the oxygen content of the gases as they leave the catalytic converter. The oxygen sensors then relay this information to your vehicle’s electronic control unit, so that it can adjust as necessary. Because cars depend on an ideal fuel-to-air ratio to function optimally, the oxygen sensors are leaned on for engine performance. When your oxygen sensors fail your car will run less smoothly, get worse mileage, and have worse emissions.

Fast and easy Oxygen Sensor Replacement service at your home or office.

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Excellent Rating


Audi A5 Quattro Repair

Average Rating

4.8/5

Number of Reviews

341

Rating Summary
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Meet some of our expert Audi mechanics

Real customer reviews from Audi owners like you.

Joe

39 years of experience
443 reviews
Joe
39 years of experience
Joe is the reason I stay with Your Mechanic! He is the best!
2011 AUDI A5 QUATTRO - CLUNKING OR KNOCKING NOISE FROM WHEELS - CLEARWATER, FL

Alex

12 years of experience
312 reviews
Alex
12 years of experience
Awesome job! This is the second time I've worked with YourMechanic.com and couldn't be more happier! Alex was very professional and knowledgeable, throughout the brake pad replacement. Would definitely recommend Alex to my family/friends and will be back. Thanks!
2008 AUDI A5 QUATTRO - BRAKE PADS REPLACEMENT (REAR) - DALLAS, TX

Kenneth

16 years of experience
203 reviews
Kenneth
16 years of experience
Kenneth is very knowledgeable and very friendly. He takes his time to analyze then gets going.
2010 AUDI A5 QUATTRO - OXYGEN SENSOR REPLACEMENT (FRONT/UPPER/UPSTREAM) - LOS ANGELES, CA

Joe

16 years of experience
69 reviews
Joe
16 years of experience
Extremely professional and knowledgeable.
2011 AUDI A8 QUATTRO - BRAKE PADS REPLACEMENT (FRONT) - CHICAGO, IL
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2017 Audi A5 QuattroL4-2.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$575.48Shop/Dealer Price$716.37 - $1106.37
2009 Audi A5 QuattroV6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$587.88Shop/Dealer Price$746.09 - $1140.31
2018 Audi A5 QuattroL4-2.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$395.58Shop/Dealer Price$491.52 - $746.61
2012 Audi A5 QuattroL4-2.0L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$407.54Shop/Dealer Price$517.41 - $789.68
2013 Audi A5 QuattroL4-2.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$414.68Shop/Dealer Price$526.28 - $803.86
2012 Audi A5 QuattroL4-2.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$414.68Shop/Dealer Price$526.25 - $803.81
2009 Audi A5 QuattroV6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$696.76Shop/Dealer Price$925.77 - $1221.70
2016 Audi A5 QuattroL4-2.0L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$407.54Shop/Dealer Price$517.45 - $789.75
Show example Audi A5 Quattro Oxygen Sensor Replacement prices

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