Hi,my 650k7 never seems to run quite as smoothly as the weather gets cooler. It sometimes cuts out completely when off the throttle quickly coming to a stop,and very rarely it will hesitate on acceleration. However it's so intermittent I haven't investigated it any further.
The usaual culprits seems to be the tps,but as mine seems to be temperature related I'm thinking the air temp sensor could need looking at,other more experienced members may have other ideas though.
Have checked the TPS in dealer mode and it's OK.
As you've sort of been living with it suggests its probably a similar issue as I'm having.