For 2002-2005 BMW 745i 745Li Base V8 4.4L Downstream Oxygen O2 Sensor 234-4470
25,61 €
Oxygen Sensor. Q: How do I know the O2 sensor is good or not?. 1 x Oxygen Sensor. Mass Air Flow Sensor. If the sensor is good, further diagnosis is required. There're many different codes for specific functional failures, which are NOT necessarily relevant to the sensor.
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