Oxygen Sensor Replacement Estimate for Mazda Protege5

Mazda Protege5 Oxygen Sensor Replacement costs $297 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$243 to $361
Labor: $70 -$80
Parts: $173 -$281
Average Dealer price
$439 to 655
Average Shop price
$299 to 434
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CarServiceYourMechanic PriceShop/Dealer Price
2002 Mazda Protege5L4-2.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$373.52Shop/Dealer Price$463.92 - $702.46
2002 Mazda Protege5L4-2.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$253.32Shop/Dealer Price$313.74 - $462.17
Show example Mazda Protege5 Oxygen Sensor Replacement prices

Parts required for a Mazda Protege5 Oxygen Sensor Replacement

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331 reviews
Jamahl
15 years of experience
He knows what he's doing and he even pumped air in my car's (almost) flat tire.
2001 MAZDA TRIBUTE - CAR IS NOT STARTING INSPECTION
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Godwin
19 years of experience
Very helpful and explains everything well
2002 MAZDA PROTEGE5 - CHECK ENGINE LIGHT IS ON INSPECTION
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Kevin
18 years of experience
Kevin was GREAT. A repair shop was going to charge me $430 to fix my radio and he fixed it in about 2 minutes. He figured out what was wrong with the air conditioning, cleaned my front headlights and I am a happy camper with my country music and cold air. I am never going back to repair shop again!
2005 MAZDA 3 - AC RECHARGE
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Chad
11 years of experience
Chad was fantastic. He worked us into his schedule in a pinch, and was communicative and helpful, and took the time to thoroughly explain his pre-purchase inspection when I asked for details about the used car we were looking at buying. . It's clear that he takes pride in the work that he does, and also values the people that he works with. He was courteous and friendly, I wish I'd known about mobile mechanic services sooner. I will definitely be checking out MyMechanic for actual service work to my *new* vehicle.
2013 MAZDA 5 - PRE-PURCHASE CAR INSPECTION
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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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