Oxygen Sensor Replacement Estimate for BMW 128i

BMW 128i Oxygen Sensor Replacement costs $304 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$259 to $365
Labor: $70 -$112
Parts: $189 -$253
Average Dealer price
$472 to 637
Average Shop price
$320 to 433
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CarServiceYourMechanic PriceShop/Dealer Price
2009 BMW 128iL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$371.80Shop/Dealer Price$475.82 - $707.85
2008 BMW 128iL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$366.73Shop/Dealer Price$469.66 - $698.01
2012 BMW 128iL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$345.73Shop/Dealer Price$440.91 - $663.46
2011 BMW 128iL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$366.73Shop/Dealer Price$469.60 - $697.91
2011 BMW 128iL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$274.72Shop/Dealer Price$351.33 - $523.94
2008 BMW 128iL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$274.72Shop/Dealer Price$351.30 - $523.89
2010 BMW 128iL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$373.06Shop/Dealer Price$477.61 - $710.75
2009 BMW 128iL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$270.93Shop/Dealer Price$346.69 - $516.53
Show example BMW 128i Oxygen Sensor Replacement prices
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Parts required for a BMW 128i Oxygen Sensor Replacement

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445 reviews
Chris
17 years of experience
Great service by Chris, very knowledgeable and friendly as well!
2008 BMW 128I - AC RECHARGE
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Jamahl
15 years of experience
Jamahl was wonderful! He was professional and went above and beyond my expectations. Such a positive experience, would highly recommend him and mobile mechanic.
2003 BMW 745LI - OIL CHANGE
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31 years of experience
Rodney fixes all my problems. He would not give up until he found the complication that ignites my SES light, and then fixed the main trouble. I admire his effort and honesty. What an expert.
2007 BMW 328I - DRIVE BELT TENSIONER REPLACEMENT
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66 reviews
Kyle
8 years of experience
Wonderful work
2003 BMW X5 - OIL PRESSURE LIGHT IS ON 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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