Oxygen Sensor Replacement Estimate for Mazda 6

Mazda 6 Oxygen Sensor Replacement costs $204 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$135 to $429
Labor: $70 -$232
Parts: $65 -$197
Average Dealer price
$223 to 664
Average Shop price
$164 to 488
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CarServiceYourMechanic PriceShop/Dealer Price
2004 Mazda 6V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$140.03Shop/Dealer Price$172.05 - $235.46
2005 Mazda 6L4-2.3LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$166.74Shop/Dealer Price$205.52 - $289.01
2003 Mazda 6L4-2.3LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$208.76Shop/Dealer Price$257.99 - $372.97
2009 Mazda 6L4-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$215.12Shop/Dealer Price$265.97 - $385.74
2013 Mazda 6V6-3.7LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$297.05Shop/Dealer Price$362.70 - $464.84
2011 Mazda 6L4-2.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$203.61Shop/Dealer Price$251.53 - $362.62
2006 Mazda 6L4-2.3L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$247.21Shop/Dealer Price$306.12 - $449.99
2004 Mazda 6L4-2.3LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$208.76Shop/Dealer Price$258.03 - $373.04
Show example Mazda 6 Oxygen Sensor Replacement prices

Parts required for a Mazda 6 Oxygen Sensor Replacement

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283 reviews
27 years of experience
Patrick was both professional and friendly, willingly chatting it up with me about my car. He lowered my estimate because the job was slightly less than what the website quoted, which was nice. While my mount was described as "broken" by another mechanic, he mentioned it was merely cracked and it was up to me if I wanted to get it replaced, which I did anyway because eventually the cracking would lead to a breakage. It was definitely a pleasure to be able to see and talk to the mechanic who was working on my car vs oftentimes where you just talk to the front man of the shop. I would fully recommend Patrick to anyone who needs work on their car and I will go back to him for any work more than an oil change.
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236 reviews
12 years of experience
I though Jose was great. He was extremely communicative and didn't seem annoyed by my random inquiries. We also had a struggle with getting the correct belt for my water pump replacement and he followed through on multiple fronts to get his hands on one. My only minor complaint was the time between the initial inspection and the work. The first appointment was almost a week away and it would have been awesome if that was a little faster. But the work was great!
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115 reviews
27 years of experience
Great service
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71 reviews
8 years of experience
Nice guy, total pro.
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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