I got the 2019.8.5 update this past week (M3 LR AWD) then a day or two later was driving home from Boston and turned on auto steer and navigate on autopilot. Hoo boy.
Every. Single. lane change failed. The car would begin to change lanes, cut back into the original lane, start to change lanes again, cut back into the first lane again, and repeat, each time getting jerkier and more violent until I yanked the steering wheel to override it and shut off autosteer.
It's like it was sensing some phantom car in the other lane that wasn't actually there.
Now, this was Boston traffic so there were lots of cars on the road, but in each case there was plenty of room for the car to change lanes.
Unfortunately I still have limited experience with auto lane changes when there are other cars on the road (thus far other than that day I've really only used it when I was by myself on the road) so I don't really have much experience to compare it to and can't be sure if it was the software update or if it would have behaved the same way in the same traffic conditions beforehand. Maybe it wasn't malfunctioning and it always does that if there are other cars on the road?
But it seems like starting to change lanes then jerking back, repeatedly, is not a good thing.
(EDIT: Once I got out of traffic and was the only car on the road, lane change worked again as expected.)
Every. Single. lane change failed. The car would begin to change lanes, cut back into the original lane, start to change lanes again, cut back into the first lane again, and repeat, each time getting jerkier and more violent until I yanked the steering wheel to override it and shut off autosteer.
It's like it was sensing some phantom car in the other lane that wasn't actually there.
Now, this was Boston traffic so there were lots of cars on the road, but in each case there was plenty of room for the car to change lanes.
Unfortunately I still have limited experience with auto lane changes when there are other cars on the road (thus far other than that day I've really only used it when I was by myself on the road) so I don't really have much experience to compare it to and can't be sure if it was the software update or if it would have behaved the same way in the same traffic conditions beforehand. Maybe it wasn't malfunctioning and it always does that if there are other cars on the road?
But it seems like starting to change lanes then jerking back, repeatedly, is not a good thing.
(EDIT: Once I got out of traffic and was the only car on the road, lane change worked again as expected.)