I agree, I would definitely spend some more time researching this. It is difficult, to give any kind of diagnoses without some more information. If your X5 did set two codes, what were they? Were they the same code? And if you're saying your X5 set computer codes twice, then went into a reduced power mode.... the codes did not get reset after a restart. They would have been there until someone cleared them.

Find out some more about this and go from there.

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Thanks.

Kenny

2009 X5 Diesel
2000 540i, (sold)