jad03060 wrote Tip-in on modern BMWs is entirely controlled by the computer and its programming assuming there’s not an actual engine fault. The throttle position is detected via a sensor - it does not directly connect to the actual engine. So, mode you’re in can make a difference.
If you’ve got ASS in operation, because there’s a potential slight delay in the activation and where your foot may have pressed the pedal prior to the engine coming on, it could ‘think’ you’re pressing it further than you intended, resulting in a surge at the beginning. This is potentially more common if you are a two foot driver in the timing between releasing the brake with the left foot versus how you’re pressing the accelerator with your right.
It's my wife's DD. ASS may be culprit, although I have this in my GMC and it's no issue. I do need to try the different modes (ASS off, eco, sport, etc.) and see if it responds differently.
Fair point on 2 foot drivers. Not our case.
crabman wrote You find throttle tip-in is more rapid on cars in a lineup that have sporting intentions than those without; it's free differentiation in the feel of the car.
Usually this goes away with familiarity; you get used to giving the pedal more of a caress than a press.
Not sure if it's a more singular thing or might apply in general... When Mrs Crab had the same problem, it turned out she was fine when she wasn't wearing heels. With them, she had trouble modulating the throttle.
I've had the issue consistently with one foot driving with everyday shoes flat sole (trail runner) shoes.
