The manual sucks. It has every option under the sun and it is very convoluted. I like their videos more than the manual
http://www.bmwusa.com/Standard/Conte...eWA4tgUP+XHqI=
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If no codes are being thrown use Chevron Techron fuel injector cleaner (concentrate). It solves rpm fluctuating upon cold start-up. Also, for most BMW problems start off by scanning your car with the Peake Research Tool. It contains the actual BMW codes. If you want to register a newly installed battery for free (just buy a $10 cable) and google/download BMWLogger