Oxygen Sensor Replacement Estimate for Mazda CX-7

Mazda CX-7 Oxygen Sensor Replacement costs $214 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$144 to $274
Labor: $70 -$80
Parts: $74 -$194
Average Dealer price
$242 to 482
Average Shop price
$176 to 326
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CarServiceYourMechanic PriceShop/Dealer Price
2010 Mazda CX-7L4-2.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$232.13Shop/Dealer Price$287.18 - $419.67
2012 Mazda CX-7L4-2.3L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$276.24Shop/Dealer Price$342.39 - $508.00
2007 Mazda CX-7L4-2.3L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$148.92Shop/Dealer Price$183.19 - $253.29
2010 Mazda CX-7L4-2.3L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$276.24Shop/Dealer Price$342.36 - $507.96
2010 Mazda CX-7L4-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$280.12Shop/Dealer Price$347.19 - $515.68
2011 Mazda CX-7L4-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$280.12Shop/Dealer Price$347.17 - $515.65
2012 Mazda CX-7L4-2.3L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$150.78Shop/Dealer Price$185.58 - $257.11
2011 Mazda CX-7L4-2.3L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$148.92Shop/Dealer Price$183.23 - $253.36
Show example Mazda CX-7 Oxygen Sensor Replacement prices

Parts required for a Mazda CX-7 Oxygen Sensor Replacement

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445 reviews
Chris
17 years of experience
Chris was very professional. he recommended only what i needed at the time to resolve this issue and to keep my cost down.
2009 MAZDA CX-7 - IGNITION COIL REPLACEMENT
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178 reviews
Chris
11 years of experience
Couldn't have been better, easier, or more pleasant. Chris showed up on time, was professional, cheerful and courteous, and solved the problem in very short order.
1996 MAZDA MIATA - CAR IS NOT STARTING INSPECTION
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126 reviews
Tyrone
6 years of experience
Tyrone is very experienced mechanic providing excellent service. Although it was Sunday and I didn't mind to wait as needed Tyrone arrived on time and started to work on my two cars. He serviced them promptly, explained everything, recommended to change one part in the near future, and addressed all my concerns. I guess, I am done with dealerships now. Tyrone is my mechanic!
2012 MAZDA 5 - BRAKE PADS REPLACEMENT (FRONT, REAR)
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111 reviews
Christopher
22 years of experience
2007 MAZDA CX-7 - OIL CHANGE
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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 Mazda Models