Oxygen Sensor Replacement Estimate for Mercedes-Benz ML320

Mercedes-Benz ML320 Oxygen Sensor Replacement costs $250 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$220 to $292
Labor: $70 -$80
Parts: $150 -$212
Average Dealer price
$394 to 517
Average Shop price
$271 to 348
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CarServiceYourMechanic PriceShop/Dealer Price
2003 Mercedes-Benz ML320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$248.71Shop/Dealer Price$318.80 - $471.89
2007 Mercedes-Benz ML320V6-3.0L Turbo DieselService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$295.00Shop/Dealer Price$376.77 - $564.67
1999 Mercedes-Benz ML320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$229.40Shop/Dealer Price$294.71 - $433.35
2001 Mercedes-Benz ML320V6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$271.78Shop/Dealer Price$347.71 - $518.17
2008 Mercedes-Benz ML320V6-3.0L Turbo DieselService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$299.24Shop/Dealer Price$381.98 - $572.98
1998 Mercedes-Benz ML320V6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$232.41Shop/Dealer Price$298.41 - $439.27
1998 Mercedes-Benz ML320V6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$233.16Shop/Dealer Price$299.51 - $441.05
2003 Mercedes-Benz ML320V6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$271.78Shop/Dealer Price$347.75 - $518.23
Show example Mercedes-Benz ML320 Oxygen Sensor Replacement prices
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Parts required for a Mercedes-Benz ML320 Oxygen Sensor Replacement

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586 reviews
Joshua
22 years of experience
very good.
2000 MERCEDES-BENZ ML320 - PRE-PURCHASE CAR 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
Mr. Sabian was so much more than we could have hoped for. After many trips to other garages to find the problem ( Patrick ) took the time to run the diagnostics to find the problem. He is a true professional in every since of the word. Straight forward, direct, so dedicated to the trade. We've found our professional mechanic for life. Thank you Patrick and thank you Your Mechanic.
1998 MERCEDES-BENZ ML320 - REMOVE FUEL TANK TO INSPECT FOR EVAP SYSTEM LEAK.
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164 reviews
Theodore
11 years of experience
Theodore is very punctual. This time its a follow up service and he came on time. His diagnosis of the issue with my car is very accurate.
2000 MERCEDES-BENZ ML320 - POWER STEERING PUMP 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.

Oxygen Sensor Replacement Estimates for Popular Mercedes-Benz Models