Originally Posted by 33Five-WA
Not sure if this topic has been discussed and my apologies if it has.
I've had a few occurrences when I'm waiting at the lights on the way to work and the idle drops to under 600rpm and the gear shifts itself to Neutral - like a safety mechanism? Then it revs up high to about 1000rpm and drops back down to idle range @ 660rpm.
This has happened to me numerous times, I also experienced like a jerking movement when rolling forward with the slightest throttle
, took the car to BMW and I was told that the " software" was replaced. The car hasn't done it since but at idle cold or warm it revs higher round the 1000-1200 mark.