Bosch Oxygen Sensor - Before Catalytic Converter - Bank 2

Bosch Oxygen Sensor - Before Catalytic Converter - Bank 2, Sensor 1 (Cyl 4-6)

Signs of an O2 sensor failure include decreased fuel economy, lack of torque, hard starting, and fault codes for the sensor(s). It is a good idea to replace the O2 sensor at regular intervals rather than waiting for a failure. Since the performance degrades over time you may not even notice the loss in performance or economy.

This part is listed by BMW as BMW part number 11787558073 and is described as Oxygen Sensor - Pre-Cat - Rear Downpipe - E9X 325i 328i 330i E60 525i 528i 530i, E82 128i. 

For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.