Oxygen Sensor Replacement Estimate for Mazda 6

Mazda 6 Oxygen Sensor Replacement costs $222 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$137 to $437
Labor: $70 -$232
Parts: $67 -$205
Average Dealer price
$227 to 680
Average Shop price
$167 to 498
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2007 Mazda 6L4-2.3LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$190.62Shop/Dealer Price$235.29 - $336.65
2004 Mazda 6V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$141.28Shop/Dealer Price$173.69 - $238.09
2011 Mazda 6L4-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$220.22Shop/Dealer Price$272.31 - $395.88
2006 Mazda 6L4-2.3LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$222.76Shop/Dealer Price$275.52 - $401.01
2012 Mazda 6L4-2.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$203.59Shop/Dealer Price$251.52 - $362.61
2007 Mazda 6V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$193.21Shop/Dealer Price$238.53 - $341.83
2005 Mazda 6L4-2.3LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$165.11Shop/Dealer Price$203.50 - $285.78
2010 Mazda 6L4-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$220.22Shop/Dealer Price$272.36 - $395.96
Show example Mazda 6 Oxygen Sensor Replacement prices
i
Have a car question? Get free advice from our top-rated mechanics.

Parts required for a Mazda 6 Oxygen Sensor Replacement

Meet some of our expert Mazda mechanics

Real customer reviews from Mazda owners like you.

236 reviews
Jose
12 years of experience
Great Job!
2006 MAZDA 6 - BRAKE PADS REPLACEMENT (REAR)
Want Jose's expert advice? Ask your question now. Its free!
184 reviews
Tom
37 years of experience
Tom was very helpful and friendly! I would recommend Tom without reservations
2006 MAZDA 6 - OIL CHANGE
Want Tom's expert advice? Ask your question now. Its free!
153 reviews
Jose
10 years of experience
Just a very pleasant guy and answered all my questions
2004 MAZDA 6 - OIL CHANGE
Want Jose's expert advice? Ask your question now. Its free!
115 reviews
Robert
27 years of experience
Robert was very diligent, helpful and flexible. He also gave great advice on how to maintain my car and explanations of the issues I was facing. When I called with last minute requests of things to check/change for my service he was very flexible and very responsive.
2004 MAZDA 6 - IDLER PULLEY REPLACEMENT
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