Oxygen Sensor Replacement Estimate for Subaru Forester

Subaru Forester Oxygen Sensor Replacement costs $299 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$200 to $516
Labor: $105 -$120
Parts: $95 -$396
Average Dealer price
$329 to 932
Average Shop price
$243 to 620
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CarServiceYourMechanic PriceShop/Dealer Price
2011 Subaru ForesterH4-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$482.46Shop/Dealer Price$598.61 - $898.04
1998 Subaru ForesterH4-2.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$245.03Shop/Dealer Price$301.92 - $423.36
2012 Subaru ForesterH4-2.5L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$251.40Shop/Dealer Price$309.81 - $435.97
2003 Subaru ForesterH4-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$525.13Shop/Dealer Price$652.02 - $983.50
2005 Subaru ForesterH4-2.5L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$417.60Shop/Dealer Price$517.55 - $768.35
1998 Subaru ForesterH4-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$207.46Shop/Dealer Price$254.84 - $348.02
2001 Subaru ForesterH4-2.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$248.33Shop/Dealer Price$306.07 - $430.00
2009 Subaru ForesterH4-2.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$219.57Shop/Dealer Price$270.09 - $372.42
Show example Subaru Forester Oxygen Sensor Replacement prices
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Parts required for a Subaru Forester Oxygen Sensor Replacement

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Real customer reviews from Subaru owners like you.

274 reviews
Noe
31 years of experience
Job well done! Very professional, knowledgeable, and efficient.
2005 SUBARU FORESTER - WINDOW MOTOR / REGULATOR ASSEMBLY REPLACEMENT (DRIVER SIDE FRONT)
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218 reviews
Brandon
13 years of experience
Very good job. Will call for him again. Saved alot of time and money for me as this was my son's car in Raleigh and I live 3 hours away and he goes to school there. Very satisfied.
2003 SUBARU FORESTER - THERMOSTAT REPLACEMENT
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153 reviews
Jose
10 years of experience
The previous purchase inspection Jose performed was very complete and helpful. I wouldn't hesitate to use Jose again
2007 SUBARU FORESTER - PRE-PURCHASE CAR INSPECTION
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54 reviews
Kenneth
11 years of experience
Kenneth was very friendly, professional, and communicative. He did a great job on all my booked services, and even went out of his way to fix another small problem he found. He also provided me with helpful recommendations for future maintenance. Thank you, Ken!
2002 SUBARU FORESTER - OIL COOLER HOSE (AUTOMATIC TRANSMISSION) REPLACEMENT
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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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