Oxygen Sensor Replacement Estimate for Mazda MX-3

Mazda MX-3 Oxygen Sensor Replacement costs $176 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$128 to $242
Labor: $70 -$80
Parts: $58 -$162
Average Dealer price
$208 to 417
Average Shop price
$155 to 286
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
1994 Mazda MX-3L4-1.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$145.22Shop/Dealer Price$178.54 - $245.84
1995 Mazda MX-3L4-1.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$224.01Shop/Dealer Price$277.11 - $403.56
1992 Mazda MX-3V6-1.8LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$208.76Shop/Dealer Price$257.99 - $372.97
1994 Mazda MX-3V6-1.8LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$208.76Shop/Dealer Price$258.01 - $373.00
1992 Mazda MX-3V6-1.8LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$245.27Shop/Dealer Price$303.62 - $445.98
1994 Mazda MX-3V6-1.8LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$245.27Shop/Dealer Price$303.61 - $445.95
1993 Mazda MX-3L4-1.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$132.53Shop/Dealer Price$162.77 - $220.62
1995 Mazda MX-3L4-1.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$143.82Shop/Dealer Price$176.87 - $243.17
Show example Mazda MX-3 Oxygen Sensor Replacement prices

Parts required for a Mazda MX-3 Oxygen Sensor Replacement

Meet some of our expert Mazda mechanics

Real customer reviews from Mazda owners like you.

266 reviews
Grzegorz
36 years of experience
Gregory was incredibly knowledgeable on the problem, went above and beyond my expectations and finished way sooner than I expected.
2005 MAZDA 3 - CLUTCH REPLACEMENT
Want Grzegorz's expert advice? Ask your question now. Its free!
136 reviews
Casey
19 years of experience
Casey is very personable and professional. He arrived within the specified time and clearly communicated with me regarding his timeframe. The job was completed within an hour and a half and he even checked my fluids and brakes! Top notch and I will definitely use these guys again! I'm recommending them to anyone who needs vehicle work done! Thank you Casey for rocking the casbah!
2002 MAZDA TRIBUTE - WINDOW MOTOR / REGULATOR ASSEMBLY REPLACEMENT (DRIVER SIDE REAR)
Want Casey's expert advice? Ask your question now. Its free!
62 reviews
Xavier
11 years of experience
Xavier was on time, friendly, personable, and professional during the entire process. He kept me informed throughout the repair, taking the time to point out not only ebay he was doing, but what i need to keep in mind for future maintenance on my car. His fast work, upbeat personality, and excellent pricing will keep me coming back for all of my future repair/maintenance needs. Thanks so much!
2011 MAZDA 3 - ENGINE MOUNT REPLACEMENT (FRONT, REAR, SIDE)
Want Xavier's expert advice? Ask your question now. Its free!
62 reviews
Robert
16 years of experience
Robert did an excellent job
2008 MAZDA 5 - OTHER INSPECTIONS
Want Robert's expert advice? Ask your question now. Its free!

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