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The one your looking at is an ODB2 reader which reads generic ODB2 codes which is helpful to diagnose problems but it doesn't read the more advanced "BMW" codes. For that you would need a GT1 running DIS.
If your light comes on, you can pull the code and see what it is but with the GT1 you will get more specific information and readings.
Last edited by Blind32; 07-27-2010 at 08:43 AM..
Reason: Worlds. Best. Speller.
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