Oxygen Sensor Replacement Estimate for Audi RS4

Audi RS4 Oxygen Sensor Replacement costs $465 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$252 to $743
Labor: $98 -$544
Parts: $154 -$199
Average Dealer price
$438 to 1031
Average Shop price
$309 to 815
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
2008 Audi RS4V8-4.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$264.27Shop/Dealer Price$356.66 - $519.47
2007 Audi RS4V8-4.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$687.13Shop/Dealer Price$987.92 - $1332.27
2007 Audi RS4V8-4.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$261.19Shop/Dealer Price$352.89 - $513.47
2008 Audi RS4V8-4.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$687.13Shop/Dealer Price$987.51 - $1331.56
Show example Audi RS4 Oxygen Sensor Replacement prices

Parts required for a Audi RS4 Oxygen Sensor Replacement

Meet some of our expert Audi mechanics

Real customer reviews from Audi owners like you.

586 reviews
Joshua
22 years of experience
As usual,Josh was extremely knowledgeable, articulate, and works quickly, despite my presence asking questions....:-)...This comment is based on numerous visits since 12/15...sadly because aging Euromobiles need lots of TLC...but that's not Josh's problem.....
1998 AUDI A6 QUATTRO - BRAKE PADS REPLACEMENT (REAR)
Want Joshua's expert advice? Ask your question now. Its free!
51 reviews
Jonathan
8 years of experience
Jonathan was on time and friendly. He diagnosis my vehicle and gave me a breakdown on what the parts and labor would cost. I would recommend him to my friends.
2000 AUDI A6 QUATTRO - CAR IS NOT STARTING INSPECTION
Want Jonathan's expert advice? Ask your question now. Its free!
48 reviews
TJ
21 years of experience
I was a little sceptical of how this might work but there was no need for any concern. TJ kept me informed prior to the appointment and provided clear summary of the work and approach he was to carry out. Not only did he fix the fault, he also provided a inspection making recommendations of what work might need to be carried out. The cost was extremely reasonable as well, less than all other quotes I received from traditional garages backed up with a 12 month warranty. An appointment was arranged for the following day whereas other garages I had to wait at least a week. Plus there was the convenience of being at home. Excellent experience and will not hesitate to use YM again. Ideal for the busy family. TJ is passionate about what he does and provides an excellent customer service. Thanks!
1999 AUDI A4 QUATTRO - SPEED SENSOR REPLACEMENT
Want TJ's expert advice? Ask your question now. Its free!
34 reviews
Clarissa
22 years of experience
Great experience great attention to detail she cares about getting it right the first time. Will use her services again.
2011 AUDI A8 QUATTRO - TUNE-UP
Want Clarissa's expert advice? Ask your question now. Its free!

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.

Oxygen Sensor Replacement Estimates for Popular Audi Models