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BOSCH Oxygen Sensor - 17099

BOSCH Oxygen Sensor - 17099

BOSCH
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UGC 17099
$165.99 - $165.99
$165.99
$165.99 - $165.99
$165.99
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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BOSCH

Oxygen Sensor

This product also goes by these part numbers: 11 78 7 558 073, 11787558073, 17099

This part also goes by the following cross reference.

Cross Reference Part Number: 11787558073

Fits These Vehicles 17 applications
BMW
Make Model Engine Years
BMW 328i xDrive 3.0L6 2009–2013
BMW 328i 3.0L6 2007–2013
BMW 128i 3.0L6 2008–2013
BMW Z4 3.0L6 2006–2011
BMW X3 3.0L6 2007–2010
BMW 528i xDrive 3.0L6 2009–2010
BMW 528i 3.0L6 2008–2010
BMW 528xi 3.0L6 2008–2008
BMW 328xi 3.0L6 2007–2008
BMW 530xi 3.0L6 2006–2007
BMW 530i 3.0L6 2006–2007
BMW 525xi 3.0L6 2006–2007
BMW 525i 3.0L6 2006–2007
BMW 330xi 3.0L6 2006–2006
BMW 330i 3.0L6 2006–2006
BMW 325xi 3.0L6 2006–2006
BMW 325i 3.0L6 2006–2006

Fitment data last updated: 2026-06-30

Fits 17 vehicle applications Check vehicle fitment before ordering View fitment

About this Oxygen Sensor

The BOSCH 17099 oxygen sensor measures the oxygen in the exhaust so the engine computer can keep the fuel mixture correct. Sensors before the catalytic converter control the mixture; sensors after it monitor the converter's efficiency.

Frequently asked questions

What does an oxygen sensor do?

It reports how rich or lean the exhaust is, and the engine computer adjusts fuel delivery in response. A faulty sensor can make the engine run too rich or too lean.

What are the signs of a failing oxygen sensor?

A check-engine light with oxygen-sensor or fuel-trim codes, poorer fuel economy, rough idle, or a failed emissions test. Exhaust leaks near the sensor can cause similar codes, so check for those too.

How do I know which sensor I need?

Sensors are specific to their position: upstream (before the catalytic converter) or downstream (after it), and on V engines, bank 1 or bank 2. The fault code usually identifies the position; check the product details for the position this sensor fits.

Can I replace an oxygen sensor myself?

Usually, yes, using an oxygen-sensor socket. Many new sensors come with anti-seize already on the threads; if not, use a sensor-safe compound only on the threads, and keep it off the sensor tip.

How do I make sure this oxygen sensor fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

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