I've been doing a complete search on all oxygen sensor related issues, but I just need a response to this one question:

After I replace the sensor, does the fuel/air mixture readjust itself back to healthy spec, or are there any further steps I need to take to make the car run correctly? Does clearing the #2 code do this for me. or...is there something more I need to do?

Thanks!

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1995 MB E320 Wagon
2001 BMW 530i
2007 MINI Cooper S (!)