Thanks Vinuneuro... I'll give it a shot. Did the others you heard of also get SES lights with knocking / pinging? Just curious as I haven't heard it, but if it is being sensed by the knock sensors I wonder if that spawns the SES.

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2013 X5 xDrive3.5i Premium
2002 530I Sport Package
2001 X5 4.4i
2001 M3