I've had the same thing happen 3 times in the last 2 months or so but no Check Engine Light. Just rough idle upon morning startup, back out of garage roughly, then put in drive and drive away smoothly with no problems. I have 73K miles and always serviced at the dealer on time. Strange rough startup, but I'm not worried since my X hasn't failed me yet!

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2022 X6///M - Toronto Red, Silverstone Full Merino Leather, Executive Package w/Remote Engine Start, Soft-close doors, Heated & Cooled Cupholders, Front Ventilated Seats, Front & Rear Heated Seats, Front Massaging Seats, Carbon Fiber Trim.

2002 X5 3.0i, Sport Premium, Titanium Silver, Grey Dakota, Cold Weather Pkg, Xenons, DICE, LED Tails, just a winter vehicle...

2007 550i, Sport Premium, Silver Grey Metallic, Grey Dakota, Nav, Cold Weather Pkg, Comfort Access, HD Radio, Xenons.