Oxygen Sensor Replacement Estimate for Infiniti I35

Infiniti I35 Oxygen Sensor Replacement costs $205 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$190 to $229
Labor: $70 -$80
Parts: $120 -$149
Average Dealer price
$333 to 391
Average Shop price
$233 to 269
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
2002 Infiniti I35V6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$230.83Shop/Dealer Price$296.45 - $436.13
2003 Infiniti I35V6-3.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$197.30Shop/Dealer Price$254.65 - $369.28
2002 Infiniti I35V6-3.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$197.30Shop/Dealer Price$254.58 - $369.14
2004 Infiniti I35V6-3.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$197.30Shop/Dealer Price$254.61 - $369.20
2004 Infiniti I35V6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$230.83Shop/Dealer Price$296.47 - $436.16
2003 Infiniti I35V6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$230.83Shop/Dealer Price$296.44 - $436.12
Show example Infiniti I35 Oxygen Sensor Replacement prices

Parts required for a Infiniti I35 Oxygen Sensor Replacement

Meet some of our expert Infiniti mechanics

Real customer reviews from Infiniti owners like you.

450 reviews
Ben
36 years of experience
Good communication and was on time. Also was very nice to explain the process to me.
2006 INFINITI G35 - CAR OVERHEATS QUICKLY INSPECTION
Want Ben's expert advice? Ask your question now. Its free!
445 reviews
Chris
17 years of experience
Chris was awesome! Arrived on time, was extremely knowledgeable and friendly! Quick and easy job! Would recommend him to everyone!!!
2011 INFINITI G37 - DEFROSTER IS NOT WORKING INSPECTION
Want Chris's expert advice? Ask your question now. Its free!
218 reviews
Brandon
13 years of experience
Brandon was on time for our appointment and was very thorough in explaining the entire process. I like that pictures were taken of my vehicle before the service was rendered and he showed me the old part that was being replaced and the new part and explained why it needed to be replaced. I would definitely utilize Your Mechanic again and will request Brandon as my mechanic.
2006 INFINITI M35 - DRIVESHAFT REPAIR
Want Brandon's expert advice? Ask your question now. Its free!
115 reviews
Robert
27 years of experience
2003 INFINITI I35 - 150,000 MILES MAINTENANCE SERVICE
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 Infiniti Models