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・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2004 Subaru ImprezaH4-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$525.27Shop/Dealer Price$652.12 - $983.66
2005 Subaru ImprezaH4-2.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$225.93Shop/Dealer Price$278.05 - $385.16
2005 Subaru ImprezaH4-2.5L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$225.93Shop/Dealer Price$277.98 - $385.04
1998 Subaru ImprezaH4-2.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$219.57Shop/Dealer Price$270.06 - $372.37
2005 Subaru ImprezaH4-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$404.63Shop/Dealer Price$501.34 - $742.41
2000 Subaru ImprezaH4-2.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$551.22Shop/Dealer Price$684.54 - $1035.53
2000 Subaru ImprezaH4-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$347.37Shop/Dealer Price$429.88 - $628.09
2006 Subaru ImprezaH4-2.5L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$225.93Shop/Dealer Price$278.04 - $385.15
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.

432 reviews
Patrick
22 years of experience
Patrick did a good job, a quick job, and it appears everything was done correctly. I do have a vibration when the car idles, however that is very noticeable. I attribute this to the aftermarket half shafts, though.....not Patrick's work in installing them. He suggested my brakes needed work, which I already knew about, but he provided me a quote on them without me having to ask. I would definitely use Patrick again.
2002 SUBARU IMPREZA - AXLE / CV SHAFT ASSEMBLY REPLACEMENT (DRIVER SIDE FRONT, PASSENGER SIDE FRONT)
Want Patrick's expert advice? Ask your question now. Its free!
344 reviews
Robert
26 years of experience
Great guy. Really goes above and beyond to make sure everything is done right and you understand what went wrong, what's been done, and how to keep it from happening in the future.
2011 SUBARU IMPREZA - POWER OUTLET IS NOT WORKING INSPECTION
Want Robert's expert advice? Ask your question now. Its free!
283 reviews
Jason
12 years of experience
Excellent services, easy to deal with, very comfortable to communicate and trust worthy. Definitely will use Jason again!!!
2005 SUBARU IMPREZA - BRAKE PADS REPLACEMENT (FRONT, REAR)
Want Jason's expert advice? Ask your question now. Its free!
274 reviews
Noe
31 years of experience
Noe is a very knowledgable trustworthy mechanic that I would highly recommend.
2007 SUBARU IMPREZA - IGNITION COIL REPLACEMENT
Want Noe'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