Oxygen Sensor Replacement Estimate for Mazda CX-5

Mazda CX-5 Oxygen Sensor Replacement costs $220 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$220 to $230
Labor: $70 -$80
Parts: $150
Average Dealer price
$393
Average Shop price
$271
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CarServiceYourMechanic PriceShop/Dealer Price
2013 Mazda CX-5L4-2.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$232.13Shop/Dealer Price$287.18 - $419.67
Show example Mazda CX-5 Oxygen Sensor Replacement prices
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Parts required for a Mazda CX-5 Oxygen Sensor Replacement

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249 reviews
Russell
19 years of experience
Very nice guy and has a lot knowledge. This particular recommendation wasn't correct (to replace the entire headlight when only the bulb socket was broken), but he alerted me to the problem which I actually can fix myself.
2004 MAZDA 3 - LIGHTS (HEADLAMPS/BEAMS/BRAKES) INSPECTION
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87 reviews
Manuel
27 years of experience
Answered all of my questions with detailed explanations. Very helpful.
2015 MAZDA 6 - 75 POINT SAFETY INSPECTION
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62 reviews
Kevin
18 years of experience
Kevin was proactive when it came to schedule adjustments. He was also meticulous about the work, down to the torque setting on the lug nuts for a simple tire rotation.
2005 MAZDA MPV - OIL CHANGE
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47 reviews
Joseph
10 years of experience
Joseph did a great job! He went slightly longer than needed, but only because he did a general check of so many other things. I'd definitely have him work on my car again!
1998 MAZDA PROTEGE - BALL JOINT FRONT REPLACEMENT (LOWER RIGHT)
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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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