Oxygen Sensor Replacement Estimate for BMW 323Ci

BMW 323Ci Oxygen Sensor Replacement costs $203 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$198 to $217
Labor: $70 -$80
Parts: $128 -$137
Average Dealer price
$348 to 367
Average Shop price
$243 to 255
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2000 BMW 323CiL6-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$208.00Shop/Dealer Price$267.91 - $390.47
2000 BMW 323CiL6-2.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$215.40Shop/Dealer Price$277.28 - $405.48
Show example BMW 323Ci Oxygen Sensor Replacement prices

Parts required for a BMW 323Ci Oxygen Sensor Replacement

Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

432 reviews
Patrick
22 years of experience
Patrick was great, knowledgeable, and timely. I would recommend him!
2008 BMW 528I - HEADLIGHT BULB REPLACEMENT (DRIVER SIDE LOW BEAM)
Want Patrick's expert advice? Ask your question now. Its free!
54 reviews
Peter
22 years of experience
Peter was very knowledgeable. Hard to find kind-hearted mechanics. Gave me tips on what I need changed. His son was also helpful, great people. Recommend
2007 BMW 328I - OTHER INSPECTIONS
Want Peter's expert advice? Ask your question now. Its free!
34 reviews
Clarissa
22 years of experience
Very professional and friendly. Clarissa knows her stuff! No hesitancy whatsoever in recommending her. I was plenty nervous before meeting her and entrusting my hi-priced sports sedan to her but quickly reached the conclusion that there was nothing to worry about...
2008 BMW 335XI - BRAKE PADS REPLACEMENT (FRONT)
Want Clarissa's expert advice? Ask your question now. Its free!
34 reviews
Carlos
12 years of experience
Knowledgeable, friendly.
2011 BMW 328I - CAR BATTERY REPLACEMENT
Want Carlos's expert advice? Ask your question now. Its free!

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