doesnt the computer preselect the gear down under heavy braking?
this seems sensible, as under hevay acceleration it pre selects the gear up?
i think its vice versa where the 400ms comes into it, eg hard brake gear up, hard acceleration gear down.
does this make any sense?
....I did a series of emergency stops recently (on purpose to test my brakes), in M-mode (Manual on DSG) and the gears did not automatically drop down!! She will in D and S modes of course.
No matter hard I accelerate she doesn't change gear in M-mode until she's into the red zone (as I remember) - I usually change gear at around 5,000 revs max.
If I come up to a junction in M mode and I forget to change gear, the computer changes down to 1st. Must be different under heavy braking.
....So does mine - But she only changes down to 1st when the car has come almost to a rest. I was testing going from about 90 in 5th/6th down to about 20 and then manually paddleshifting into 3rd/2nd to accelerate and repeat the test.