Oxygen Sensor Replacement Estimate for Mercedes-Benz R500

Mercedes-Benz R500 Oxygen Sensor Replacement costs $223 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$177 to $286
Labor: $70 -$144
Parts: $107 -$142
Average Dealer price
$307 to 451
Average Shop price
$217 to 327
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CarServiceYourMechanic PriceShop/Dealer Price
2006 Mercedes-Benz R500V8-5.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$223.03Shop/Dealer Price$286.69 - $420.52
2007 Mercedes-Benz R500V8-5.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$220.20Shop/Dealer Price$283.27 - $415.07
2007 Mercedes-Benz R500V8-5.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$239.51Shop/Dealer Price$313.70 - $433.19
2006 Mercedes-Benz R500V8-5.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$239.51Shop/Dealer Price$313.76 - $433.30
Show example Mercedes-Benz R500 Oxygen Sensor Replacement prices

Parts required for a Mercedes-Benz R500 Oxygen Sensor Replacement

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586 reviews
Joshua
22 years of experience
Originally, I was scheduled to work with another mechanic, who is no longer available with YourMechanic. I was told that Josh would be taking over the work on my Mercedes, but that I would have to wait a week for his next available appointment. My first experience with Josh was a very positive one. He is very professional, upbeat and friendly. He arrived early, explained the issue at hand very well and was very clear and concise about next steps. He found that my original mechanic only found part of the problem with my car, not the whole issue. So he comped the labor and parts from his visit and scheduled a follow up appointment with me to install the final part and complete the job. Thank you very much, Josh!
2001 MERCEDES-BENZ ML320 - WINDOW IS NOT WORKING INSPECTION
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Rocco
17 years of experience
Rocco was amazing. He did our battery change very quickly and even showed me a few things to do on the car. I would highly recommend him and will be using him again. Thank you Rocco :)
2010 MERCEDES-BENZ GLK350 - CAR BATTERY REPLACEMENT
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8 years of experience
Blake is the best, very polite efficient. I will definitely ask for Blake again.
2000 MERCEDES-BENZ CLK320 - OIL CHANGE
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Rusty
18 years of experience
Good
2005 MERCEDES-BENZ C230 - FOG OR DRIVING LIGHTS ARE NOT WORKING INSPECTION
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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.

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