Oxygen Sensor Replacement Estimate for Audi A4

Audi A4 Oxygen Sensor Replacement costs $255 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
1998 Audi A4V6-2.8LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$217.25Shop/Dealer Price$279.48 - $408.98
1996 Audi A4V6-2.8LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$278.39Shop/Dealer Price$358.43 - $523.87
2007 Audi A4L4-2.0L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$233.94Shop/Dealer Price$300.37 - $442.41
2004 Audi A4L4-1.8L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$231.14Shop/Dealer Price$296.92 - $436.89
2003 Audi A4L4-1.8L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$234.18Shop/Dealer Price$300.66 - $442.87
2001 Audi A4L4-1.8L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$234.18Shop/Dealer Price$300.63 - $442.82
2006 Audi A4V6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$192.04Shop/Dealer Price$248.12 - $358.82
2005 Audi A4L4-1.8L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$231.14Shop/Dealer Price$296.96 - $436.96
Show example Audi A4 Oxygen Sensor Replacement prices

Parts required for a Audi A4 Oxygen Sensor Replacement

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445 reviews
Chris
17 years of experience
He s the man !!
2007 AUDI A4 - OIL CHANGE
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344 reviews
Robert
26 years of experience
Arrived on time, quickly finished service. Found a few things that he cleaned up --- I am not a car person so don't exactly recall, but there was a random clip somewhere in the engine and a plug was missing from an oil change he thought. Very professional. For example, Robert came to my office so I couldn't come meet him immediately when he started/finished due to work, and he was very patient and understanding.
2008 AUDI A4 - 55,000 MILES MAINTENANCE SERVICE
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282 reviews
Mark
6 years of experience
Very convenient professional service. Will use the service again.
2004 AUDI A4 - BRAKE PADS REPLACEMENT (REAR)
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178 reviews
Chris
11 years of experience
Arrived early. Very professional, thorough, and competent. Highly recommend Chris.
2006 AUDI A4 - OTHER INSPECTIONS
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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.

Oxygen Sensor Replacement Estimates for Popular Audi Models