Shop OEM BMW Part # 11787576673 (11-78-7-576-673). Oxygen Sensor (Upper). Oxygen Sensor - Repair or Replace A failed Oxygen Sensor will often have no noticeable symptoms beyond a check

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Oxygen Sensor.

Oxygen Sensor

Oxygen Sensor - Repair or Replace
A failed Oxygen Sensor will often have no noticeable symptoms beyond a check engine light, but it does cause your to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and genuine parts.