Oxygen Sensor Replacement Estimate for Infiniti Q45

Infiniti Q45 Oxygen Sensor Replacement costs $169 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$135 to $295
Labor: $70 -$168
Parts: $65 -$127
Average Dealer price
$223 to 450
Average Shop price
$164 to 334
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CarServiceYourMechanic PriceShop/Dealer Price
1990 Infiniti Q45V8-4.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$153.00Shop/Dealer Price$199.16 - $280.47
2001 Infiniti Q45V8-4.1LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$229.74Shop/Dealer Price$304.03 - $406.30
2006 Infiniti Q45V8-4.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$197.30Shop/Dealer Price$254.58 - $369.14
2000 Infiniti Q45V8-4.1LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$152.74Shop/Dealer Price$198.91 - $280.08
1999 Infiniti Q45V8-4.1LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$154.30Shop/Dealer Price$200.80 - $283.09
2004 Infiniti Q45V8-4.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$199.70Shop/Dealer Price$257.52 - $373.85
1995 Infiniti Q45V8-4.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$140.35Shop/Dealer Price$183.50 - $255.43
2005 Infiniti Q45V8-4.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$159.10Shop/Dealer Price$206.90 - $292.87
Show example Infiniti Q45 Oxygen Sensor Replacement prices

Parts required for a Infiniti Q45 Oxygen Sensor Replacement

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Real customer reviews from Infiniti owners like you.

248 reviews
Stefan
12 years of experience
Stefan arrived on time and fixed the problem, i was very satisfied with Stefan for performance on the job i'm feel so bad for him that day because was to hot for him to be working under my car and the floor was to hot, overall he dont care about it he just get the job done, thank you Stefan you are the MAN.
2000 INFINITI I30 - ALTERNATOR REPAIR
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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
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31 reviews
Emmette
31 years of experience
emmette was courteous and was on time. He was quick and the craftsmanship was great! I waited before this review to prove everyone that his quality of work is excellent. Tie rod install was top notch. thanks emmette!
2004 INFINITI G35 - TIE ROD END REPLACEMENT (FRONT RIGHT INNER, FRONT RIGHT OUTER)
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13 reviews
Oreste
9 years of experience
Excellent
2009 INFINITI G37 - SERPENTINE/DRIVE BELT REPLACEMENT
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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.

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