Oxygen Sensor Replacement Estimate for BMW 733i

BMW 733i Oxygen Sensor Replacement costs $132 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$132 to $142
Labor: $70 -$80
Parts: $62
Average Dealer price
$216
Average Shop price
$160
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CarServiceYourMechanic PriceShop/Dealer Price
1984 BMW 733iL6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$136.55Shop/Dealer Price$178.59 - $247.56
1984 BMW 733iL6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$135.32Shop/Dealer Price$177.17 - $245.31
1982 BMW 733iL6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$135.32Shop/Dealer Price$177.10 - $245.17
1982 BMW 733iL6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$135.32Shop/Dealer Price$177.13 - $245.24
1983 BMW 733iL6-3.2LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$136.55Shop/Dealer Price$178.61 - $247.59
1983 BMW 733iL6-3.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$136.55Shop/Dealer Price$178.58 - $247.55
Show example BMW 733i Oxygen Sensor Replacement prices

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113 reviews
Michael
22 years of experience
Michael was very professional, called me one day before the appointment to make sure everything was on track. He showed up on time to the appointment with a professional appearance and tools. My car was inoperable upon his arrival and helped me push my 3800 lbs vehicle all the way into the apartment complex. He began inspecting the starter that needed replacement and discovered the previous mechanic had not seated the electrical wiring properly and thus the starter did not need be replaced. Most mechanics would of pulled a shady move and still went ahead and replaced it. Due to his findings he was able to save me money and time! I can't wait to work with him again.
2008 BMW 335I - CAR STARTER REPAIR
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54 reviews
Peter
22 years of experience
Just paid him for basically something I already knew , waste of time and money, save ur money !?
2008 BMW X5 - POWER STEERING FLUID IS LEAKING INSPECTION
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44 reviews
Jared
11 years of experience
Jared arrived right on time. He explained what could be the problem and got right to work to solve it. Obviously an expert in his line of work. He was friendly, courteous and efficient. I can highly recommend Jared and "Your Mechanic" with no reservations. Great thanks to all.
1996 BMW 328IS - CAR HEATER BLOWER MOTOR REPLACEMENT
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19 reviews
Alexis
25 years of experience
amazing service professional and well done.
2005 BMW 545I - BRAKE SYSTEM FLUSH
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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