Oxygen Sensor Replacement Estimate for BMW 128i

BMW 128i Oxygen Sensor Replacement costs $296 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$271 to $337
Labor: $70 -$112
Parts: $201 -$225
Average Dealer price
$496 to 580
Average Shop price
$335 to 398
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
2012 BMW 128iL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$320.00Shop/Dealer Price$408.70 - $611.91
2011 BMW 128iL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$283.72Shop/Dealer Price$362.68 - $542.11
2011 BMW 128iL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$336.50Shop/Dealer Price$431.76 - $637.36
2012 BMW 128iL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$290.72Shop/Dealer Price$372.18 - $553.50
2009 BMW 128iL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$287.75Shop/Dealer Price$367.61 - $549.99
2010 BMW 128iL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$287.75Shop/Dealer Price$367.58 - $549.94
2008 BMW 128iL6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$342.12Shop/Dealer Price$438.94 - $648.87
2008 BMW 128iL6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$283.72Shop/Dealer Price$362.67 - $542.10
Show example BMW 128i Oxygen Sensor Replacement prices

Parts required for a BMW 128i Oxygen Sensor Replacement

Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

445 reviews
Chris
17 years of experience
Great service by Chris, very knowledgeable and friendly as well!
2008 BMW 128I - CAR AC REPAIR
Want Chris's expert advice? Ask your question now. Its free!
109 reviews
Jonathan
12 years of experience
Quick, professional, thorough pre-purchase inspection.
2012 BMW 128I - PRE-PURCHASE CAR INSPECTION
Want Jonathan's expert advice? Ask your question now. Its free!
97 reviews
Shaun
11 years of experience
Very professional, helpful and honest
2006 BMW 330I - CAR THERMOSTAT REPLACEMENT
Want Shaun's expert advice? Ask your question now. Its free!
19 reviews
Daniel
13 years of experience
Very pleasant and not looking to take advantage of non-gear heads.
2006 BMW 650I - CAR BATTERY REPLACEMENT
Want Daniel'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