Oxygen Sensor Replacement Estimate for Mercedes-Benz 300E

Mercedes-Benz 300E Oxygen Sensor Replacement costs $231 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$225 to $243
Labor: $70 -$80
Parts: $155 -$163
Average Dealer price
$403 to 419
Average Shop price
$277 to 287
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CarServiceYourMechanic PriceShop/Dealer Price
1989 Mercedes-Benz 300EL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$246.01Shop/Dealer Price$315.42 - $466.48
1993 Mercedes-Benz 300EL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$234.26Shop/Dealer Price$300.86 - $443.21
1990 Mercedes-Benz 300EL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$240.94Shop/Dealer Price$309.12 - $456.42
1987 Mercedes-Benz 300EL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$242.75Shop/Dealer Price$311.43 - $460.11
1991 Mercedes-Benz 300EL6-2.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$244.16Shop/Dealer Price$313.13 - $462.82
1988 Mercedes-Benz 300EL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$246.01Shop/Dealer Price$315.41 - $466.47
1987 Mercedes-Benz 300EL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$246.82Shop/Dealer Price$316.59 - $468.38
1986 Mercedes-Benz 300EL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$242.75Shop/Dealer Price$311.46 - $460.17
Show example Mercedes-Benz 300E Oxygen Sensor Replacement prices
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Parts required for a Mercedes-Benz 300E Oxygen Sensor Replacement

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341 reviews
Honorio
14 years of experience
It was raining at appointment time, but he returned later during a small break in the rain to replace a cylinder coil and now my car runs great.
2007 MERCEDES-BENZ GL450 - IGNITION COIL REPLACEMENT
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282 reviews
Mark
6 years of experience
This is the second time Mark has serviced my car. As with the first time, Mark was a consummate professional from start to finish. Thanks Mark.
1997 MERCEDES-BENZ E320 - TIRE ROTATION
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164 reviews
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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145 reviews
James
26 years of experience
He was on time and very efficient. He gave me the advice I needed.
1975 MERCEDES-BENZ 230 - PRE-PURCHASE CAR 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