Oxygen Sensor Replacement Estimate for Mercedes-Benz ML450

Mercedes-Benz ML450 Oxygen Sensor Replacement costs $297 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$286 to $314
Labor: $70 -$80
Parts: $216 -$234
Average Dealer price
$525 to 561
Average Shop price
$353 to 376
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CarServiceYourMechanic PriceShop/Dealer Price
2011 Mercedes-Benz ML450V6-3.5L HybridService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$312.66Shop/Dealer Price$398.74 - $599.79
2010 Mercedes-Benz ML450V6-3.5L HybridService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$318.25Shop/Dealer Price$405.85 - $611.18
2011 Mercedes-Benz ML450V6-3.5L HybridService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$318.25Shop/Dealer Price$405.77 - $611.05
2010 Mercedes-Benz ML450V6-3.5L HybridService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$299.12Shop/Dealer Price$381.89 - $572.85
Show example Mercedes-Benz ML450 Oxygen Sensor Replacement prices

Parts required for a Mercedes-Benz ML450 Oxygen Sensor Replacement

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Jamahl
15 years of experience
I definitely recommend hiring Jamahl for any of your projects. He is a professional and is considerate in getting the problem fixed.
2006 MERCEDES-BENZ ML350 - BRAKE SYSTEM FLUSH
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12 years of experience
Stephan provided a professional job both in technical know how but also in customer relations. He is a good representative for the Your Mechanic organization. Would love to have him work with us again.
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Brikk
13 years of experience
Normally I do not confess to auto techs that I spent 40 years as a GM Service Manager and Service Advisor. BUT, Brikk was so pleasant and likable, our conversation was that of cars. He not only fixed my problem, but was sure to check other items on my car that I had not complained about. As I always tell everyone, there is but one thing that surpasses great customer service, and that is MORE of it...Thank you Brikk for a job well done, and if I ever need your service again, consider your phone ringing...Thanks
2007 MERCEDES-BENZ S550 - CHECK ENGINE LIGHT IS ON INSPECTION
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Matthew
6 years of experience
great communication
2009 MERCEDES-BENZ E350 - DOOR DOES NOT LOCK OR OPEN INSPECTION
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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.

Oxygen Sensor Replacement Estimates for Popular Mercedes-Benz Models