Oxygen Sensor Replacement Estimate for BMW 323is

BMW 323is Oxygen Sensor Replacement costs $251 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$251 to $261
Labor: $70 -$80
Parts: $181
Average Dealer price
$455
Average Shop price
$309
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CarServiceYourMechanic PriceShop/Dealer Price
1998 BMW 323isL6-2.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$265.39Shop/Dealer Price$339.65 - $505.25
1999 BMW 323isL6-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$261.78Shop/Dealer Price$335.25 - $498.23
1999 BMW 323isL6-2.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$261.78Shop/Dealer Price$335.17 - $498.09
1998 BMW 323isL6-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$261.78Shop/Dealer Price$335.21 - $498.16
Show example BMW 323is Oxygen Sensor Replacement prices

Parts required for a BMW 323is Oxygen Sensor Replacement

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286 reviews
Dave
18 years of experience
Dave is the third person who has tried to diagnose the problem with my car and he fixed for about half of the original estimate in about half the time budgeted. I only hope that I'm able to get him again for ongoing service.
2013 BMW X3 - COOLING SYSTEM FLUSH
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282 reviews
Mark
6 years of experience
My husband and I can not say enough positive things about our experience with Mark. He was professional, very well prepared, and really nice. He took care of our car quickly, and was more than willing to answer all of our questions!
1999 BMW 323I - ALTERNATOR / SERPENTINE BELT REPLACEMENT
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14 reviews
Carlos
11 years of experience
Carols was helpful, honest and pleasure to work with. He gave me a hint of what to do with my car from this point because it does need some work. I was happy because he gave me a couple pointers on how to get my car fixed with paying a lot for it.
2004 BMW 325CI - OIL CHANGE
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6 reviews
Chi
20 years of experience
Chi finally got my car up and running, and I'm super happy. I'd wait a week, to work with Chi vs another mechanic. He's that good. Friendly, knowledgeable, and genuinely wants to help and get you back on the road. 6 stars.
1968 BMW 2002 - CAR BATTERY REPLACEMENT
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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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