Oxygen Sensor Replacement Estimate for Audi A8

Audi A8 Oxygen Sensor Replacement costs $260 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$251 to $282
Labor: $98 -$112
Parts: $153 -$170
Average Dealer price
$436 to 471
Average Shop price
$308 to 329
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CarServiceYourMechanic PriceShop/Dealer Price
1997 Audi A8V8-3.7LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$281.94Shop/Dealer Price$363.50 - $528.14
1999 Audi A8V8-3.7LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$260.12Shop/Dealer Price$336.39 - $484.79
1998 Audi A8V8-3.7LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$278.54Shop/Dealer Price$359.31 - $521.44
1999 Audi A8V8-3.7LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$278.54Shop/Dealer Price$359.36 - $521.53
1998 Audi A8V8-3.7LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$263.18Shop/Dealer Price$340.07 - $490.66
1997 Audi A8V8-3.7LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$263.18Shop/Dealer Price$340.03 - $490.59
Show example Audi A8 Oxygen Sensor Replacement prices
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Parts required for a Audi A8 Oxygen Sensor Replacement

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471 reviews
Peter
38 years of experience
Well all I can say is that I would love for Mr. Peter P to be my Mechanic for life, this mechanic inspires confidence, the kind of confidence a person wants to have when dealing with a sick car (I love my Audi A8) and just not knowing who to trust to get it fixed. Thank you Peter for all the work and I will see him again for the rest of my repairs. Thank you YourMechanic for employing good, honest and expert technicians.
2000 AUDI A8 QUATTRO - CAR IS STALLING INSPECTION
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308 reviews
Dan
34 years of experience
Dan did a great job. He was prompt, quick, kind and an overall pleasure.
2013 AUDI A4 - OIL CHANGE
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277 reviews
Trung
7 years of experience
Great
2009 AUDI A3 - 95,000 MILES MAINTENANCE SERVICE
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192 reviews
Chet
36 years of experience
Chet couldn't have been better... arrived on the dot... thorough but honest and fair. Warned of possible issues, but wasn't trying to do unnecessary repairs.
2001 AUDI S4 - OIL/FLUID LEAK INSPECTION
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All about Oxygen Sensor Replacement

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.

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