Oxygen Sensor Replacement at your home or office.

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Oxygen Sensor Replacement Estimate for Mercedes-Benz E550

Mercedes-Benz E550 Oxygen Sensor Replacement costs $229 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$127 to $320
Labor: $70 -$104
Parts: $57 -$216
Average Dealer price
$207 to 553
Average Shop price
$155 to 378
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
2012 Mercedes-Benz E550V8-4.6L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$194.75Shop/Dealer Price$253.73 - $356.32
2010 Mercedes-Benz E550V8-5.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$207.24Shop/Dealer Price$269.49 - $381.57
2011 Mercedes-Benz E550V8-5.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$320.12Shop/Dealer Price$410.49 - $607.15
2008 Mercedes-Benz E550V8-5.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$186.24Shop/Dealer Price$240.79 - $347.09
2008 Mercedes-Benz E550V8-5.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$303.44Shop/Dealer Price$387.23 - $581.39
2009 Mercedes-Benz E550V8-5.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$188.43Shop/Dealer Price$243.44 - $351.32
2012 Mercedes-Benz E550V8-4.6L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$152.90Shop/Dealer Price$201.61 - $272.96
2007 Mercedes-Benz E550V8-5.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$299.12Shop/Dealer Price$381.93 - $572.91
Show example Mercedes-Benz E550 Oxygen Sensor Replacement prices

Oxygen Sensor Replacement Service & Cost

What is the Oxygen Sensor all about?

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-MATROX-1

Keep in mind:

  • Many oxygen sensors are damaged by leaking oil or coolant. If that is the case, the cause of that leak needs to be identified and repaired, or else the replacement oxygen sensor will be damaged as well.
  • New vehicles require specific oxygen sensors, and not the universal sensors that were common prior to 1996.

How it's done:

  • Scan the computer in the car for codes.
  • Inspect for vacuum leaks and holes in the exhaust system.
  • Remove and replace the oxygen sensor if it is bad.
  • Check electrical connections.
  • Check for proper operation of oxygen sensors.
  • Clear diagnostic codes.
  • Test drive car.

Our recommendation:

Keep up with the tune-ups. If check engine light is on, don't drive the car too long without getting it inspected. If check engine light is flashing, pull over and get the car towed to avoid costly repairs. Ask the mechanic to inspect the vacuum hoses and leaks in the exhaust system. If the vacuum hose or exhaust system is leaking, it will display an oxygen sensor fault code. Replacing an oxygen sensor may not fix the problem.

What common symptoms indicate you may need to replace the Oxygen Sensor?

  • Check Engine light is on.
  • Car is getting poor gas mileage.
  • Emission test fails.

How important is this service?

Your vehicle has multiple oxygen sensors, and they all help the car run optimally. The front sensors measure how much oxygen is in the exhaust stream to measure how rich or lean the gases leaving the gas chamber are. The rear sensors measure the oxygen content of the gases as they leave the catalytic converter. The oxygen sensors then relay this information to your vehicle’s electronic control unit, so that it can adjust as necessary. Because cars depend on an ideal fuel-to-air ratio to function optimally, the oxygen sensors are leaned on for engine performance. When your oxygen sensors fail your car will run less smoothly, get worse mileage, and have worse emissions.

Fast and easy Oxygen Sensor Replacement service at your home or office.

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Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

287 reviews
Steven
9 years of experience
Fantastic mechanic. The cost of changing the oil at a Mercedes dealership was $283.00. He saved me over $190.00. He showed up on time, with a great smile. He sure knows his business. Did a great job!!!!!
2007 MERCEDES-BENZ E350 - OIL CHANGE
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62 reviews
Kevin
18 years of experience
Kevin was awesome. Gave us the answers we were looking for and much more. I will recommend him to friends as well as your service
2001 MERCEDES-BENZ SLK230 - CLUTCH IS NOT WORKING INSPECTION
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44 reviews
Jared
11 years of experience
Jared was really personable and informative! He was running ahead of schedule so he contacted me to see if I would like him to come early. He not only took care of the known issue but was also thorough to find a secondary problem that I was unaware of. He made extra time for me to take care of both issues immediately! Great service and very competitive pricing will bring my business back whenever I should have need. Thanks!!!
2001 MERCEDES-BENZ E430 - SERPENTINE/DRIVE BELT REPLACEMENT
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30 reviews
Terrell
36 years of experience
Terrell was timely and proficient. Arrived early with parts and everything necessary to complete the job. Job was completed fast, and easy!
2011 MERCEDES-BENZ E350 - CAR BATTERY REPLACEMENT
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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
2012 Mercedes-Benz E550V8-4.6L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$194.75Shop/Dealer Price$253.73 - $356.32
2010 Mercedes-Benz E550V8-5.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$207.24Shop/Dealer Price$269.49 - $381.57
2011 Mercedes-Benz E550V8-5.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$320.12Shop/Dealer Price$410.49 - $607.15
2008 Mercedes-Benz E550V8-5.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$186.24Shop/Dealer Price$240.79 - $347.09
2008 Mercedes-Benz E550V8-5.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$303.44Shop/Dealer Price$387.23 - $581.39
2009 Mercedes-Benz E550V8-5.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$188.43Shop/Dealer Price$243.44 - $351.32
2012 Mercedes-Benz E550V8-4.6L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$152.90Shop/Dealer Price$201.61 - $272.96
2007 Mercedes-Benz E550V8-5.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$299.12Shop/Dealer Price$381.93 - $572.91
Show example Mercedes-Benz E550 Oxygen Sensor Replacement prices

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