Oxygen Sensor Replacement Estimate for BMW 325es

BMW 325es Oxygen Sensor Replacement costs $158 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$157 to $167
Labor: $70 -$80
Parts: $87
Average Dealer price
$268
Average Shop price
$192
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CarServiceYourMechanic PriceShop/Dealer Price
1986 BMW 325esL6-2.7LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$164.35Shop/Dealer Price$213.35 - $303.17
1986 BMW 325esL6-2.7LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$162.60Shop/Dealer Price$211.29 - $299.89
1987 BMW 325esL6-2.7LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$162.60Shop/Dealer Price$211.21 - $299.75
1987 BMW 325esL6-2.7LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$162.60Shop/Dealer Price$211.24 - $299.81
Show example BMW 325es Oxygen Sensor Replacement prices
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178 reviews
Chris
11 years of experience
great work and on time.
1987 BMW 325ES - OXYGEN SENSOR REPLACEMENT (FRONT/UPPER/UPSTREAM)
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145 reviews
James
26 years of experience
James was very professional. He was on time, very personable and knowledgable.
2000 BMW 323I - BATTERY REPLACEMENT
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132 reviews
Alex
11 years of experience
Alex is a very knowledgeable and courteous. He answered all my questions about this visit and also other questions about my car very well. I would highly recommend him to everyone.
2004 BMW 330I - BRAKE PADS REPLACEMENT (FRONT, REAR)
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97 reviews
Shaun
11 years of experience
Shaun arrived on-time and completed the job within an hour. He left the work area clean and the resolved my issue.
2008 BMW 650I - 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.

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