Oxygen Sensor Replacement Estimate for Mercedes-Benz 300E

Mercedes-Benz 300E Oxygen Sensor Replacement costs $242 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$228 to $255
Labor: $70 -$80
Parts: $158 -$175
Average Dealer price
$410 to 442
Average Shop price
$281 to 302
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CarServiceYourMechanic PriceShop/Dealer Price
1987 Mercedes-Benz 300EL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$252.60Shop/Dealer Price$323.66 - $479.67
1989 Mercedes-Benz 300EL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$249.22Shop/Dealer Price$319.56 - $473.13
1988 Mercedes-Benz 300EL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$249.22Shop/Dealer Price$319.48 - $472.99
1990 Mercedes-Benz 300EL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$255.34Shop/Dealer Price$327.16 - $485.28
1992 Mercedes-Benz 300EL6-2.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$258.83Shop/Dealer Price$331.47 - $492.16
1990 Mercedes-Benz 300EL6-2.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$258.83Shop/Dealer Price$331.44 - $492.11
1991 Mercedes-Benz 300EL6-2.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$259.70Shop/Dealer Price$332.69 - $494.14
1990 Mercedes-Benz 300EL6-2.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$255.34Shop/Dealer Price$327.19 - $485.34
Show example Mercedes-Benz 300E Oxygen Sensor Replacement prices

Parts required for a Mercedes-Benz 300E Oxygen Sensor Replacement

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Steven
9 years of experience
Steven was great, I would hire him again in the future.
2001 MERCEDES-BENZ C240 - FUEL PUMP REPLACEMENT
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Theodore
11 years of experience
Theodore was on time and very professional. He diagnosed the problem and made a second appointment for me after the required part arrives. Very satisfied with the experience so far.
1983 MERCEDES-BENZ 380SL - CAR IS NOT STARTING INSPECTION
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James
26 years of experience
He came prepared and came early. Did a lot of tests and discovered that I needed a fuel pump along with some other repairs.
2003 MERCEDES-BENZ C32 AMG - CAR IS NOT STARTING INSPECTION
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Andrew
6 years of experience
Great attitude, superb knowledge. I will not have slightest hesitation to book him again if required for my car. Thank you very much for all your work in extreme weather.
2003 MERCEDES-BENZ C240 - ALTERNATOR REPAIR
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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