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.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$228 to $268
Labor: $70 -$80
Parts: $158 -$188
Average Dealer price
$410 to 470
Average Shop price
$281 to 319
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
1991 Mercedes-Benz 300SEL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$241.31Shop/Dealer Price$309.54 - $457.08
1990 Mercedes-Benz 300SEL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$238.14Shop/Dealer Price$305.70 - $450.95
1988 Mercedes-Benz 300SEL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$249.22Shop/Dealer Price$319.48 - $472.99
1991 Mercedes-Benz 300SEL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$238.14Shop/Dealer Price$305.66 - $450.88
1992 Mercedes-Benz 300SEL6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$273.54Shop/Dealer Price$349.86 - $521.58
1988 Mercedes-Benz 300SEL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$252.60Shop/Dealer Price$323.65 - $479.66
1993 Mercedes-Benz 300SEL6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$274.48Shop/Dealer Price$351.16 - $523.70
1992 Mercedes-Benz 300SEL6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$269.78Shop/Dealer Price$345.24 - $514.22
Show example Mercedes-Benz 300SE Oxygen Sensor Replacement prices

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

Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

50 reviews
Matthew
6 years of experience
Matthew was very quick in determining the problem and even quicker fixing it. Arrived early and was great to deal with.
2001 MERCEDES-BENZ SLK230 - BRAKE LIGHT SWITCH REPLACEMENT
Want Matthew's expert advice? Ask your question now. Its free!
49 reviews
Jim
7 years of experience
Jim is a very knowledgeable guy and gave me some excellent recommendations. Will definitely book him again.
2004 MERCEDES-BENZ ML500 - OIL CHANGE
Want Jim's expert advice? Ask your question now. Its free!
36 reviews
Logan
44 years of experience
WOW!!! I loved the experience of having a mechanic come to my home. He arrived promptly, introduced himself and got right to work. He took his time to explain what he was doing, and answered all my questions. I was so surprised when he told me the repairs were still under warranty (my car is 7 years old/67,000 miles), Wow, now that is a honest mechanic!!!! :) I highly recommend "Your Mechanic". Patty/Tracy, CA 2007 Mercedes Benz "check engine light"
2007 MERCEDES-BENZ C230 - CHECK ENGINE LIGHT IS ON INSPECTION
Want Logan's expert advice? Ask your question now. Its free!
26 reviews
James
16 years of experience
If you drive a German Machine, book him all the time. He has thorough knowledge. In fact, he knows about cars, all makes and models. He's 5 star!!
2005 MERCEDES-BENZ C230 - CAR IS MAKING A NOISE INSPECTION
Want James'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