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
1993 Mazda MX-3V6-1.8LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$245.27Shop/Dealer Price$303.61 - $445.96
1992 Mazda MX-3V6-1.8LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$208.76Shop/Dealer Price$258.04 - $373.05
1993 Mazda MX-3L4-1.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$131.09Shop/Dealer Price$160.91 - $217.64
1994 Mazda MX-3L4-1.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$143.82Shop/Dealer Price$176.85 - $243.14
1995 Mazda MX-3L4-1.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$226.92Shop/Dealer Price$280.68 - $409.27
1992 Mazda MX-3L4-1.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$132.24Shop/Dealer Price$162.32 - $219.89
1995 Mazda MX-3L4-1.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$145.56Shop/Dealer Price$179.06 - $246.69
1994 Mazda MX-3V6-1.8LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$208.76Shop/Dealer Price$258.03 - $373.04
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.

283 reviews
Patrick
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.
2004 MAZDA 6 - ENGINE MOUNT REPLACEMENT (REAR)
Want Patrick's expert advice? Ask your question now. Its free!
223 reviews
Joe
38 years of experience
Very knowledgeable. Always on time. Very helpful with quality service and quick repairs.
1999 MAZDA PROTEGE - OTHER INSPECTIONS
Want Joe's expert advice? Ask your question now. Its free!
111 reviews
Jose
12 years of experience
excellent
2000 MAZDA PROTEGE - TIMING BELT REPLACEMENT
Want Jose's expert advice? Ask your question now. Its free!
55 reviews
Chris
6 years of experience
Great guy
2005 MAZDA 6 - WINDOW IS NOT GOING UP OR DOWN INSPECTION
Want Chris'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