BMW O2 Sensor Replacement ( E39) FCP Euro , Project E39

, ProjectE39 recently threw an SES light. After scanning it with an OBD tool it was determined that there was a weak signal from an O2 sensor. With that said it is worth noting that the car was running the factory sensors with nearly 116K miles on them. It was time to replace them and I am glad to report that after a 2 mile test drive that the motor feels like it is running smoother. Thanks to our sponsors at FCP Euro we will be able to get the job done quicker and also give valua br, br,