Oxygen Sensor Replacement Estimate for Infiniti I35

Infiniti I35 Oxygen Sensor Replacement costs $204 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$194 to $224
Labor: $70 -$80
Parts: $124 -$144
Average Dealer price
$340 to 381
Average Shop price
$238 to 263
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
2003 Infiniti I35V6-3.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$203.59Shop/Dealer Price$262.40 - $381.65
2003 Infiniti I35V6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$222.76Shop/Dealer Price$286.48 - $420.20
2002 Infiniti I35V6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$222.76Shop/Dealer Price$286.41 - $420.07
2002 Infiniti I35V6-3.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$201.12Shop/Dealer Price$259.39 - $376.84
2004 Infiniti I35V6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$225.64Shop/Dealer Price$289.98 - $425.79
2004 Infiniti I35V6-3.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$203.59Shop/Dealer Price$262.39 - $381.63
Show example Infiniti I35 Oxygen Sensor Replacement prices
i
Have a car question? Get free advice from our top-rated mechanics.

Parts required for a Infiniti I35 Oxygen Sensor Replacement

Meet some of our expert Infiniti mechanics

Real customer reviews from Infiniti owners like you.

282 reviews
Mark
6 years of experience
Mark is very professional. He also took time to explain the work and answered questions patiently.
2001 INFINITI I30 - CHECK ENGINE LIGHT IS ON INSPECTION
Want Mark'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!
87 reviews
Manuel
27 years of experience
Manuel is an amazing mechanic. He was there on a complex issue and had my car up and running in no time. Thanks Manuel!!!
1999 INFINITI Q45 - FUEL PUMP REPLACEMENT
Want Manuel's expert advice? Ask your question now. Its free!
61 reviews
Cary
22 years of experience
Great visit, personal, punctual, and very professional. Will definitely use again.
2004 INFINITI FX35 - SPARK PLUG REPLACEMENT
Want Cary'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