Oxygen Sensor Replacement Estimate for Mercedes-Benz C300

Mercedes-Benz C300 Oxygen Sensor Replacement costs $291 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$179 to $428
Labor: $70 -$216
Parts: $109 -$212
Average Dealer price
$312 to 675
Average Shop price
$220 to 490
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2010 Mercedes-Benz C300V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$188.11Shop/Dealer Price$243.05 - $350.69
2008 Mercedes-Benz C300V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$414.00Shop/Dealer Price$539.18 - $759.62
2011 Mercedes-Benz C300V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$414.00Shop/Dealer Price$538.96 - $759.25
2008 Mercedes-Benz C300V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$185.92Shop/Dealer Price$240.39 - $346.45
2011 Mercedes-Benz C300V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$188.11Shop/Dealer Price$243.07 - $350.72
2009 Mercedes-Benz C300V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$188.11Shop/Dealer Price$243.04 - $350.67
2010 Mercedes-Benz C300V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$419.30Shop/Dealer Price$545.89 - $770.37
2012 Mercedes-Benz C300V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$186.27Shop/Dealer Price$240.87 - $347.22
Show example Mercedes-Benz C300 Oxygen Sensor Replacement prices
i
Have a car question? Get free advice from our top-rated mechanics.

Parts required for a Mercedes-Benz C300 Oxygen Sensor Replacement

Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

277 reviews
Trung
7 years of experience
Trung's very knowledgeable in answering my questions! Arrives on time and is very professional
2008 MERCEDES-BENZ C300 - OIL CHANGE
Want Trung's expert advice? Ask your question now. Its free!
160 reviews
Carlos
11 years of experience
Always professional and my favorite mechanic
2008 MERCEDES-BENZ C300 - OIL CHANGE
Want Carlos's expert advice? Ask your question now. Its free!
97 reviews
Shaun
11 years of experience
Shaun did an excellent job! I needed an 80k miles maintenance service and since the service was expensive, I wanted to just get an oil change and get his opinion on what services were needed within the long list of Mercedes recommended services. I handed him the keys and went back to my office. He finished the service within the allotted time and let me know what services I needed with a detailed report of my fluid levels, etc. All of this and the time needed from me - no more than a couple minutes of handing the key and taking it back after the service. Convenience at its best!
2009 MERCEDES-BENZ C300 - OIL CHANGE
Want Shaun's expert advice? Ask your question now. Its free!
39 reviews
Jay
11 years of experience
Jays is such a gentlemen, I am very happy and please with his service. I will definitely book him again. Thank you
2012 MERCEDES-BENZ C300 - UBERX INSPECTION AND OIL CHANGE PACKAGE
Want Jay's expert advice? Ask your question now. Its free!

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