I assume you guys are using Waze (or some other software) to determine your actual speed. I noticed my speed to be off as much as 5 mph (BMW displays 75, Waze displays 70) but this doesn't happen all of the time. At times the two speeds match almost exactly so I would assume it is an iDrive software bug. I haven't had my shop install the latest iDrive version yet. I wanted to wait and read what others have been experiencing. The issue reported above about a battery drain when the X7 is turned off but not locked is a good example of why you never wanted to be their beta tester. I use Waze most of the time anyway so I go by that speed. Hopefully BMW gets the X7 iDrive software nailed down soon and gets OTA updates pushed out to all owners before years end.
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