Quote:
Originally Posted by bmobile
Update: I took my car into an indy BMW specialist on Monday for an oil change, brake fluid flush and vehicle check. These were all coming due(I'm at 56k miles) so I wanted to take care everything at once.
Long story short, they didn't have the o2 sensor in stock(though I mentioned this when making the appointment) so I planned to make another appointment for the following week. I picked up the car and drove it to work. As expected, the increased emission light was still on and the car felt fine. On the way home from work, I pushed the car a little on the highway and it definitely felt sluggish at high rpms. I stopped for gas and when I started it up again, the fault did not return. "All Systems OK"
I've driven maybe 50-60 miles since and the light has not returned and although the power seams to be coming back, it's not quite where it was before taking it to the shop. The mileage seems normal so I'm planning on waiting until the next time I need to get my car serviced(spark plugs, oil change) to change out the o2 sensors, or when the SES-increase emission warning light returns
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Just because the SES no longer shows up does not mean the problem is gone. As long as you have a fault stored in the DME the problem exists. You can have an 02 go bad and the SES will activate but not always be present. Driving the car with a bad 02 sensor is a big no no.