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
1988 Mercedes-Benz 300SEL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$252.60Shop/Dealer Price$323.66 - $479.67
1993 Mercedes-Benz 300SEL6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$269.78Shop/Dealer Price$345.25 - $514.23
1990 Mercedes-Benz 300SEL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$238.14Shop/Dealer Price$305.62 - $450.81
1990 Mercedes-Benz 300SEL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$238.14Shop/Dealer Price$305.66 - $450.88
1991 Mercedes-Benz 300SEL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$241.31Shop/Dealer Price$309.56 - $457.11
1989 Mercedes-Benz 300SEL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$252.60Shop/Dealer Price$323.65 - $479.66
1988 Mercedes-Benz 300SEL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$253.45Shop/Dealer Price$324.87 - $481.63
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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Ben
36 years of experience
Very professional, punctual and sincere. Ben knows his stuff, no second guessing with his recommendations. "Straight shooter" to be precise!
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Theodore
11 years of experience
He is very punctual, came on time. Explained me the problems well and gave good advice.
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Shaun
11 years of experience
Needed my front struts replaced. Shaun was originally unable to remove the springs from the strut due to the spring's high tension - he took the shocks back to his place where he had an air compressor and finished the job before I got out of work. All throughout this he remained intention about staying communicative - very professional! I'd say - a good job! Car's working fine now.
2012 MERCEDES-BENZ SLK350 - STRUT ASSEMBLY REPLACEMENT (FRONT)
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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