Oxygen Sensor Replacement Estimate for Mercedes-Benz ML550

Mercedes-Benz ML550 Oxygen Sensor Replacement costs $238 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$127 to $360
Labor: $70 -$144
Parts: $57 -$216
Average Dealer price
$207 to 599
Average Shop price
$155 to 420
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
2010 Mercedes-Benz ML550V8-5.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$359.44Shop/Dealer Price$463.54 - $672.93
2009 Mercedes-Benz ML550V8-5.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$355.12Shop/Dealer Price$458.36 - $664.67
2008 Mercedes-Benz ML550V8-5.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$355.12Shop/Dealer Price$458.22 - $664.42
2011 Mercedes-Benz ML550V8-5.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$355.12Shop/Dealer Price$458.28 - $664.53
2009 Mercedes-Benz ML550V8-5.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$188.43Shop/Dealer Price$243.47 - $351.37
2012 Mercedes-Benz ML550V8-4.6L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$131.62Shop/Dealer Price$172.42 - $237.69
2008 Mercedes-Benz ML550V8-5.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$188.98Shop/Dealer Price$244.29 - $352.70
2010 Mercedes-Benz ML550V8-5.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$186.24Shop/Dealer Price$240.83 - $347.15
Show example Mercedes-Benz ML550 Oxygen Sensor Replacement prices

Parts required for a Mercedes-Benz ML550 Oxygen Sensor Replacement

Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

445 reviews
Chris
17 years of experience
Very nice and professional
2012 MERCEDES-BENZ C250 - CAR BATTERY REPLACEMENT
Want Chris's expert advice? Ask your question now. Its free!
341 reviews
Honorio
14 years of experience
It was raining at appointment time, but he returned later during a small break in the rain to replace a cylinder coil and now my car runs great.
2007 MERCEDES-BENZ GL450 - IGNITION COIL REPLACEMENT
Want Honorio's expert advice? Ask your question now. Its free!
129 reviews
David
23 years of experience
David was on time, extremely professional and polite. The service (brake pads changed) I had scheduled was more than I needed and David saw to it that I was only charged for the work he performed; I was quoted to have all the pads changed but only need the back set done. Definitely happy with the service he provided and will certainly use this service again for my future car needs. It was refreshing to deal with a mechanic that wasn't out to take my money for services I really didn't need; this was the first time i didn't feel taken advantage of when it came to servicing my car.
2011 MERCEDES-BENZ CLS550 - BRAKE PADS REPLACEMENT (REAR)
Want David's expert advice? Ask your question now. Its free!
119 reviews
Adam
12 years of experience
Even though due to other issues my car is still not driveable, Adam definitley did his part. Knowledgeable, encouraging and courteous were just a few of his strengths.
2005 MERCEDES-BENZ C230 - TRANSMISSION FLUID PAN REPLACEMENT
Want Adam'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