Oxygen Sensor Replacement Estimate for Mercedes-Benz ML320

Mercedes-Benz ML320 Oxygen Sensor Replacement costs $247 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$220 to $296
Labor: $70 -$80
Parts: $150 -$216
Average Dealer price
$393 to 525
Average Shop price
$271 to 353
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CarServiceYourMechanic PriceShop/Dealer Price
2000 Mercedes-Benz ML320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$235.24Shop/Dealer Price$301.96 - $444.95
2009 Mercedes-Benz ML320V6-3.0L Turbo DieselService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$299.12Shop/Dealer Price$381.93 - $572.92
2008 Mercedes-Benz ML320V6-3.0L Turbo DieselService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$299.12Shop/Dealer Price$381.86 - $572.79
2002 Mercedes-Benz ML320V6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$229.17Shop/Dealer Price$294.45 - $432.95
2002 Mercedes-Benz ML320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$258.76Shop/Dealer Price$331.38 - $492.03
2007 Mercedes-Benz ML320V6-3.0L Turbo DieselService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$303.44Shop/Dealer Price$387.20 - $581.34
2007 Mercedes-Benz ML320V6-3.0L Turbo DieselService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$304.52Shop/Dealer Price$388.71 - $583.78
2001 Mercedes-Benz ML320V6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$229.17Shop/Dealer Price$294.49 - $433.01
Show example Mercedes-Benz ML320 Oxygen Sensor Replacement prices

Parts required for a Mercedes-Benz ML320 Oxygen Sensor Replacement

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586 reviews
Joshua
22 years of experience
Originally, I was scheduled to work with another mechanic, who is no longer available with YourMechanic. I was told that Josh would be taking over the work on my Mercedes, but that I would have to wait a week for his next available appointment. My first experience with Josh was a very positive one. He is very professional, upbeat and friendly. He arrived early, explained the issue at hand very well and was very clear and concise about next steps. He found that my original mechanic only found part of the problem with my car, not the whole issue. So he comped the labor and parts from his visit and scheduled a follow up appointment with me to install the final part and complete the job. Thank you very much, Josh!
2001 MERCEDES-BENZ ML320 - WINDOW IS NOT WORKING INSPECTION
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308 reviews
Dan
34 years of experience
DAN IS THE MAN!!! AWESOME!!! MY NEW MECHANIC!!!
1999 MERCEDES-BENZ ML320 - SERPENTINE/DRIVE BELT REPLACEMENT
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283 reviews
Patrick
27 years of experience
This is my second experience with Patrick. He is an outstanding mechanic! He's knowable and efficient. I would strongly recommend him!!
2002 MERCEDES-BENZ ML320 - CAR AC REPAIR
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164 reviews
Theodore
11 years of experience
He is very punctual, came on time. Explained me the problems well and gave good advice.
2000 MERCEDES-BENZ ML320 - STEERING WHEEL DOES NOT RESPOND PROPERLY 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