Oxygen Sensor Replacement Estimate for Mercedes-Benz 300SE

Mercedes-Benz 300SE 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 $268
Labor: $70 -$80
Parts: $158 -$188
Average Dealer price
$410 to 470
Average Shop price
$281 to 319
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CarServiceYourMechanic PriceShop/Dealer Price
1992 Mercedes-Benz 300SEL6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$273.54Shop/Dealer Price$349.84 - $521.55
1989 Mercedes-Benz 300SEL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$249.22Shop/Dealer Price$319.56 - $473.13
1988 Mercedes-Benz 300SEL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$249.22Shop/Dealer Price$319.48 - $472.99
1990 Mercedes-Benz 300SEL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$238.14Shop/Dealer Price$305.66 - $450.88
1990 Mercedes-Benz 300SEL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$241.31Shop/Dealer Price$309.56 - $457.11
1993 Mercedes-Benz 300SEL6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$273.54Shop/Dealer Price$349.83 - $521.54
1992 Mercedes-Benz 300SEL6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$274.48Shop/Dealer Price$351.16 - $523.70
1989 Mercedes-Benz 300SEL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$249.22Shop/Dealer Price$319.55 - $473.12
Show example Mercedes-Benz 300SE Oxygen Sensor Replacement prices

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

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111 reviews
Christopher
22 years of experience
Great
2003 MERCEDES-BENZ C240 - SERPENTINE/DRIVE BELT REPLACEMENT
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109 reviews
Augie
26 years of experience
On time and finished before the estimated time and very knowledgeable and honest mechanic , I had no stress and my car works perfectly . Highly recommended.
1993 MERCEDES-BENZ 300E - VALVE COVER GASKET REPLACEMENT
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61 reviews
Chad
11 years of experience
Chad is very personable and knowledgable about what he does. Stands by his work and is totally the coolest Mechanic I've ever met. He gets to know his client and really works to the clients satisfaction.
2003 MERCEDES-BENZ C320 - SPARK PLUG REPLACEMENT
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20 reviews
Joseph
15 years of experience
Excellent mechanic. He completed the car service in timely manner. Rate:10
2001 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