Oxygen Sensor Replacement Estimate for Mercedes-Benz E300

Mercedes-Benz E300 Oxygen Sensor Replacement costs $270 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$245 to $304
Labor: $70 -$80
Parts: $175 -$224
Average Dealer price
$442 to 541
Average Shop price
$302 to 363
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2009 Mercedes-Benz E300V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$311.95Shop/Dealer Price$397.85 - $598.37
2009 Mercedes-Benz E300V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$255.19Shop/Dealer Price$327.01 - $485.05
2008 Mercedes-Benz E300V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$255.19Shop/Dealer Price$326.94 - $484.91
2008 Mercedes-Benz E300V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$307.47Shop/Dealer Price$392.33 - $589.55
Show example Mercedes-Benz E300 Oxygen Sensor Replacement prices

Parts required for a Mercedes-Benz E300 Oxygen Sensor Replacement

Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

212 reviews
Enrique
16 years of experience
He was on time ,courteous and above all professional which inturn made me feel comfortable with him working on my car.
2004 MERCEDES-BENZ CLK320 - BRAKE PADS REPLACEMENT (REAR)
Want Enrique's expert advice? Ask your question now. Its free!
133 reviews
Alex
11 years of experience
Alex was very professional and did a great job fixing the car within the specified time.
1999 MERCEDES-BENZ E320 - CRANKSHAFT POSITION SENSOR REPLACEMENT
Want Alex's expert advice? Ask your question now. Its free!
132 reviews
Rodney
31 years of experience
on time, informative, got the job done.
2001 MERCEDES-BENZ S500 - CRANKSHAFT POSITION SENSOR REPLACEMENT
Want Rodney's expert advice? Ask your question now. Its free!
49 reviews
Andrew
6 years of experience
Very helpful man
2003 MERCEDES-BENZ C320 - BRAKE PADS REPLACEMENT (FRONT)
Want Andrew'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