Oxygen Sensor Replacement Estimate for Subaru Impreza

Subaru Impreza Oxygen Sensor Replacement costs $281 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$142 to $533
Labor: $70 -$120
Parts: $72 -$413
Average Dealer price
$237 to 965
Average Shop price
$173 to 641
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2006 Subaru ImprezaH4-2.5L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$228.21Shop/Dealer Price$280.80 - $389.54
2010 Subaru ImprezaH4-2.5L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$218.93Shop/Dealer Price$269.59 - $375.61
2005 Subaru ImprezaH4-2.5L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$225.93Shop/Dealer Price$277.98 - $385.04
2007 Subaru ImprezaH4-2.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$225.93Shop/Dealer Price$278.01 - $385.10
2004 Subaru ImprezaH4-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$525.27Shop/Dealer Price$652.14 - $983.69
1997 Subaru ImprezaH4-1.8LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$246.37Shop/Dealer Price$303.49 - $425.85
2002 Subaru ImprezaH4-2.0L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$228.78Shop/Dealer Price$281.64 - $390.91
1996 Subaru ImprezaH4-1.8LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$243.76Shop/Dealer Price$300.33 - $420.80
Show example Subaru Impreza Oxygen Sensor Replacement prices

Parts required for a Subaru Impreza Oxygen Sensor Replacement

Meet some of our expert Subaru mechanics

Real customer reviews from Subaru owners like you.

344 reviews
Robert
26 years of experience
Great experience, and will absolutely go with Robert again.
2006 SUBARU IMPREZA - SPARK PLUG REPLACEMENT
Want Robert's expert advice? Ask your question now. Its free!
249 reviews
Russell
19 years of experience
I cannot rate Russ high enough! I'd give him 10 stars! He made accurate recommendations and fixed the car in a professional timely manner. He goes above and beyond for his customers!
1996 SUBARU IMPREZA - INSPECTION / DIAGNOSTICS
Want Russell's expert advice? Ask your question now. Its free!
197 reviews
Jeff
22 years of experience
On time, very knowledgable and fixed my car quick! Will definitely have him work on my car again!
2007 SUBARU IMPREZA - RADIATOR REPLACEMENT
Want Jeff's expert advice? Ask your question now. Its free!
137 reviews
Richard
6 years of experience
Richard was the first honest mechanic I have met. He clearly explained what needed to be done on my car, so that I could understand the work that he would be doing. He did great work and went above and beyond in quality service!
2009 SUBARU IMPREZA - 75,000 MILES MAINTENANCE SERVICE
Want Richard'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 Subaru Models