Oxygen Sensor Replacement Estimate for Audi A4 Quattro

Audi A4 Quattro Oxygen Sensor Replacement costs $260 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$165 to $541
Labor: $70 -$296
Parts: $95 -$245
Average Dealer price
$282 to 834
Average Shop price
$201 to 615
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CarServiceYourMechanic PriceShop/Dealer Price
2000 Audi A4 QuattroV6-2.8LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$217.58Shop/Dealer Price$279.88 - $409.62
2009 Audi A4 QuattroL4-2.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$252.85Shop/Dealer Price$324.10 - $480.38
2007 Audi A4 QuattroL4-2.0L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$233.94Shop/Dealer Price$300.37 - $442.41
1997 Audi A4 QuattroL4-1.8L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$227.98Shop/Dealer Price$292.97 - $430.57
2003 Audi A4 QuattroV6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$471.82Shop/Dealer Price$619.11 - $849.29
2005 Audi A4 QuattroV6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$471.82Shop/Dealer Price$619.01 - $849.11
1998 Audi A4 QuattroV6-2.8LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$282.81Shop/Dealer Price$363.99 - $532.77
2006 Audi A4 QuattroL4-2.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$317.86Shop/Dealer Price$405.35 - $610.39
Show example Audi A4 Quattro Oxygen Sensor Replacement prices

Parts required for a Audi A4 Quattro Oxygen Sensor Replacement

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Real customer reviews from Audi owners like you.

395 reviews
Tien
18 years of experience
Tien was very courteous and showed up on time. After looking at the car he determined additional parts would be required to do the job. It took a while to get a new quote. Not sure if this was Tien's fault or YourMechanic. The parts recommended were pricey and didn't include everything needed to complete the job (Tien uncovered that another pulley was needed but that wasn't in the new quote). I researched it myself, bought the parts on Amazon, and scheduled a different mechanic to come complete the job. Tien seemed a bit rushed and ready to move on to the next job. I think he'd be great on any job that is super straight forward. But if any troubleshooting is required he doesn't go the extra mile like I've seen from other mechanics to see it through to the end.
1999 AUDI A4 QUATTRO - OTHER INSPECTIONS
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341 reviews
Honorio
14 years of experience
Honorio was great. He was very thorough and took the time needed to get the job done. Thank-you.
2001 AUDI A4 QUATTRO - ALTERNATOR REPAIR
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50 reviews
Matthew
6 years of experience
Matt was great and helpful once again. Came out got everything done quickly, and gave me good advice on how to proceed with some other remaining issues.
2002 AUDI A4 QUATTRO - CAR THERMOSTAT REPLACEMENT
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48 reviews
TJ
21 years of experience
Honest, hardworking and takes pride in his work. Talks you through every step of the way during his diagnosis and remediation.
2007 AUDI A4 QUATTRO - CAR IS NOT STARTING 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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