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
1993 Mercedes-Benz 300EL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$241.31Shop/Dealer Price$309.54 - $457.08
1990 Mercedes-Benz 300EL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$255.34Shop/Dealer Price$327.20 - $485.35
1991 Mercedes-Benz 300EL6-2.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$255.34Shop/Dealer Price$327.12 - $485.21
1990 Mercedes-Benz 300EL6-2.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$255.34Shop/Dealer Price$327.16 - $485.28
1986 Mercedes-Benz 300EL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$252.60Shop/Dealer Price$323.68 - $479.71
1990 Mercedes-Benz 300EL6-2.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$258.83Shop/Dealer Price$331.44 - $492.11
1989 Mercedes-Benz 300EL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$253.45Shop/Dealer Price$324.87 - $481.63
1993 Mercedes-Benz 300EL6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$254.08Shop/Dealer Price$325.63 - $482.84
Show example Mercedes-Benz 300E Oxygen Sensor Replacement prices

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

Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

266 reviews
Grzegorz
36 years of experience
Grzegorz Kilon arrived 35 minutes late. When he arrived, he did not have the filter. He came back 10:35 AM from the supposedly 9 AM appointment. Would have avoided the delay if he had it in the beginning. Also, PENZOIL was indicated that was used in receipt. He used an O'Reilly brand oil.
1991 MERCEDES-BENZ 300E - OIL CHANGE
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111 reviews
Christopher
22 years of experience
Chris was professional and knowledgeable. I doubt I will go back to a garage again. This was a much better overall experience. How did I not know about mobile mechanics and Chris sooner?
2006 MERCEDES-BENZ C230 - INTAKE MANIFOLD GASKETS 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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30 reviews
Terrell
36 years of experience
Super quick and easy, was in and out. Will def use again.
2011 MERCEDES-BENZ C300 - BRAKE LIGHT BULB REPLACEMENT (DRIVER SIDE)
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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