Oxygen Sensor Replacement Estimate for BMW 640i

BMW 640i Oxygen Sensor Replacement costs $415 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$266 to $575
Labor: $84 -$96
Parts: $182 -$479
Average Dealer price
$476 to 1069
Average Shop price
$328 to 698
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CarServiceYourMechanic PriceShop/Dealer Price
2012 BMW 640iL6-3.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$601.56Shop/Dealer Price$761.44 - $1172.48
2012 BMW 640iL6-3.0L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$277.51Shop/Dealer Price$356.52 - $524.62
Show example BMW 640i Oxygen Sensor Replacement prices
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Parts required for a BMW 640i Oxygen Sensor Replacement

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331 reviews
Jamahl
15 years of experience
RE: write a review hey i couldn't get to the write a review page for Jamahl. so please post this for hime to his thing. Jamahl is a well spoken well mannered individual. His working manners are excellent. his job description satisfies all auto works criteria. he is neat and careful minded in his work. i recommend Jamahl to anyone whom needs auto repairs on their vehicles. I needed a brake job, and wheels are spinning with no squeaks. thanks to Jamahl awesome works. recommeded to all in need. thanks again. henry here
2007 BMW 335I - BRAKE PADS REPLACEMENT (FRONT, REAR)
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Richard
16 years of experience
Really like this guy. Great personality, knowledgeable and thorough.
2004 BMW X5 - BRAKE PADS REPLACEMENT (FRONT, REAR)
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Shaun
11 years of experience
Great service from Shaun. On time, clean and professional.
2009 BMW 328I - BRAKE PADS REPLACEMENT (REAR)
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36 reviews
Logan
44 years of experience
Very pleasant and Job well done!
2003 BMW 530I - BRAKE PADS REPLACEMENT (REAR)
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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 BMW Models

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