A good quality scanner is one of those must have tools for a DIYer. They aren't cheap but well worth the investment for the long haul. Over the years have tried a bunch of scanners. Have the Torque app on my Seicane. Use it for realtime info and additional gauges. The go to complete scanner for BMWs only that I use is the Foxwell 14020sch. Very easy to use, intuitive.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas