Oxygen Sensor Replacement Estimate for Mercedes-Benz R320

Mercedes-Benz R320 Oxygen Sensor Replacement costs $291 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$286 to $309
Labor: $70 -$80
Parts: $216 -$229
Average Dealer price
$525 to 551
Average Shop price
$353 to 370
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CarServiceYourMechanic PriceShop/Dealer Price
2007 Mercedes-Benz R320V6-3.0L Turbo DieselService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$303.44Shop/Dealer Price$387.21 - $581.35
2009 Mercedes-Benz R320V6-3.0L Turbo DieselService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$312.92Shop/Dealer Price$399.18 - $600.51
2007 Mercedes-Benz R320V6-3.0L Turbo DieselService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$299.12Shop/Dealer Price$381.86 - $572.79
2009 Mercedes-Benz R320V6-3.0L Turbo DieselService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$312.92Shop/Dealer Price$399.13 - $600.44
2008 Mercedes-Benz R320V6-3.0L Turbo DieselService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$303.44Shop/Dealer Price$387.23 - $581.39
2008 Mercedes-Benz R320V6-3.0L Turbo DieselService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$303.44Shop/Dealer Price$387.20 - $581.34
Show example Mercedes-Benz R320 Oxygen Sensor Replacement prices

Parts required for a Mercedes-Benz R320 Oxygen Sensor Replacement

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Trung
7 years of experience
Trung arrived on-time and provided excellent service and professionalism throughout! Very relatable person with trust and mechanical skills. Was able to replace air filter and tail-light last minute and give great advice for both cars i own.
1997 MERCEDES-BENZ E420 - OIL CHANGE
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12 years of experience
WOW WHAT A GREAT JOB, THANK YOU VERY MUCH , AND THE PRICE WAS RIGHT :-):-):-) THANK YOU, THANK YOU , THANK YOU :-) THE BROWN'S
1998 MERCEDES-BENZ ML320 - CAR STARTER REPAIR
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Manuel
27 years of experience
great idea, great process, you are fine you have a great service
2010 MERCEDES-BENZ GLK350 - OIL CHANGE
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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
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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.

Oxygen Sensor Replacement Estimates for Popular Mercedes-Benz Models