Oxygen Sensor Replacement Estimate for Mercedes-Benz S320

Mercedes-Benz S320 Oxygen Sensor Replacement costs $229 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$195 to $271
Labor: $70 -$80
Parts: $125 -$191
Average Dealer price
$342 to 475
Average Shop price
$239 to 322
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CarServiceYourMechanic PriceShop/Dealer Price
1996 Mercedes-Benz S320L6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$262.67Shop/Dealer Price$336.24 - $499.80
1994 Mercedes-Benz S320L6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$263.02Shop/Dealer Price$336.80 - $500.71
1998 Mercedes-Benz S320L6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$212.66Shop/Dealer Price$273.78 - $399.87
1999 Mercedes-Benz S320L6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$212.66Shop/Dealer Price$273.82 - $399.93
1999 Mercedes-Benz S320L6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$232.14Shop/Dealer Price$298.10 - $438.78
1994 Mercedes-Benz S320L6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$276.64Shop/Dealer Price$353.71 - $527.74
1996 Mercedes-Benz S320L6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$205.36Shop/Dealer Price$264.76 - $385.45
1997 Mercedes-Benz S320L6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$229.14Shop/Dealer Price$294.45 - $432.95
Show example Mercedes-Benz S320 Oxygen Sensor Replacement prices

Parts required for a Mercedes-Benz S320 Oxygen Sensor Replacement

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Mark
6 years of experience
Read out the code and gave me the info I needed to fix my problem. Even did some research ahead for me on what I needed to say and do.
2003 MERCEDES-BENZ E320 - INSPECTION / DIAGNOSTICS
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32 years of experience
Couldn't ask for anything more...
2008 MERCEDES-BENZ C300 - UBERX INSPECTION AND OIL CHANGE PACKAGE
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12 years of experience
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2010 MERCEDES-BENZ CLS550 - CAR STARTER REPAIR
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7 years of experience
Jim is a very knowledgeable guy and gave me some excellent recommendations. Will definitely book him again.
2004 MERCEDES-BENZ ML500 - OIL CHANGE
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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