Oxygen Sensor Replacement Estimate for BMW 525xi

BMW 525xi Oxygen Sensor Replacement costs $453 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$442 to $505
Labor: $245 -$280
Parts: $197 -$225
Average Dealer price
$720 to 775
Average Shop price
$538 to 573
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
2007 BMW 525xiL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$488.00Shop/Dealer Price$637.68 - $886.63
2007 BMW 525xiL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$453.90Shop/Dealer Price$595.48 - $819.17
2006 BMW 525xiL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$453.90Shop/Dealer Price$595.21 - $818.69
2006 BMW 525xiL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$465.19Shop/Dealer Price$609.45 - $841.50
Show example BMW 525xi Oxygen Sensor Replacement prices

Parts required for a BMW 525xi Oxygen Sensor Replacement

Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

395 reviews
Tien
18 years of experience
Tien is great! One of my headlights stopped working and he helped me fix it very quickly. Thank you!
2001 BMW 325CI - OTHER INSPECTIONS
Want Tien's expert advice? Ask your question now. Its free!
308 reviews
Dan
34 years of experience
Dan showed up on time and completed his work as specified.
2000 BMW 323I - BRAKE PADS REPLACEMENT (FRONT, REAR)
Want Dan's expert advice? Ask your question now. Its free!
73 reviews
Danny
6 years of experience
danny was very nice and knowledgeable. he was running late and called to let me know, which was appreciated.
1986 BMW 635CSI - CAR BATTERY REPLACEMENT
Want Danny's expert advice? Ask your question now. Its free!
59 reviews
Steven
16 years of experience
Prompt, courteous and professional. Steven did a thorough pre-buy inspection that has potentially saved me thousands of dollars. The photos were exceptional and the report easy to understand. HIGHLY RECOMMENDED.
2006 BMW 325I - PRE-PURCHASE CAR INSPECTION
Want Steven'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