Oxygen Sensor Replacement Estimate for Infiniti M45

Infiniti M45 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
$154 to $303
Labor: $70 -$80
Parts: $84 -$223
Average Dealer price
$261 to 539
Average Shop price
$188 to 362
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 Infiniti M45V8-4.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$199.70Shop/Dealer Price$257.53 - $373.86
2008 Infiniti M45V8-4.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$197.30Shop/Dealer Price$254.65 - $369.28
2004 Infiniti M45V8-4.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$197.30Shop/Dealer Price$254.58 - $369.14
2010 Infiniti M45V8-4.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$197.30Shop/Dealer Price$254.61 - $369.20
2006 Infiniti M45V8-4.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$199.70Shop/Dealer Price$257.55 - $373.90
2006 Infiniti M45V8-4.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$311.26Shop/Dealer Price$396.97 - $596.97
2009 Infiniti M45V8-4.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$312.37Shop/Dealer Price$398.53 - $599.48
2003 Infiniti M45V8-4.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$159.10Shop/Dealer Price$206.90 - $292.87
Show example Infiniti M45 Oxygen Sensor Replacement prices

Parts required for a Infiniti M45 Oxygen Sensor Replacement

Meet some of our expert Infiniti mechanics

Real customer reviews from Infiniti owners like you.

445 reviews
Chris
17 years of experience
Highly professional, straight-forward, candid, humorous, and organized man did a super clean job.
2008 INFINITI G35 - OIL CHANGE
Want Chris's expert advice? Ask your question now. Its free!
331 reviews
Jamahl
15 years of experience
Jamahl was courteous and professional. Made sure I was informed throughout the service. I will use Your Mechanic again just so that I can have Jamahl work on the car. Thank you!
2004 INFINITI G35 - OIL CHANGE
Want Jamahl's expert advice? Ask your question now. Its free!
212 reviews
Enrique
16 years of experience
Great service!
2008 INFINITI EX35 - CAR IS OVERHEATING INSPECTION
Want Enrique's expert advice? Ask your question now. Its free!
66 reviews
Kyle
8 years of experience
Kyle was professional and quick, and I appreciated the information he provided on the issue with my car. Although he did call to let me know his previous appointment ran late, he stated his ETA would be 20 minutes but ended up being an hour. My 10:00 appointment time ended up starting well after 11.
2005 INFINITI G35 - CAMSHAFT POSITION SENSOR REPLACEMENT
Want Kyle'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