
Originally Posted by
IIIAWOLIII
Please explain the difference between:
- Putting the car in Sport, then moving the selector to the right into manual mode
and
- Having the car in "D", then moving the selector to the right into manual mode
You're going to be picking the shift points regardless once you've got the selector to the right into manual mode. Is there some other benefit?
The throttle is drive by wire...so when you press the pedal, the ECM filters the pedal request into an torque request (will be overdamped). For those who don't understand that, check out this figure below
The input is a step function (goes from 0 to 1 instantaneously), but the response is any one of those curves. Time is in the x-axis. So you are requesting a quick response with your foot, but the actual torque requested to the ECM (which dictates throttle plate angle, bypass valve opening or boost request, spark advance, cam phasing) could be quite slow. This is how lots of manufactures implement "eco" mode. They just make your pedal inputs slow as fuck.
Putting the engine/trans into 'S' mode absolutely makes a difference when in manual mode. How do I know? Because I *always* drive the car with engine in 'S' mode, and can absolutely tell when it is in 'D' mode. You can tell that the setting is retained because when you move the stick back to the left, it will retain whatever prior setting there was.

Originally Posted by
Maitre Absolut
What others have claimed (I'm still skeptical) is the following :
If you are in dynamic (shifts+throttle response) and put the car in "D", you have overridden the dynamic settings for shifts+throttle response and put them into comfort (switched to the secondary map). Switching to M will keep these same comfort settings.
If you are in dynamic and leave the car in "S", switching over to "M" keeps the dynamic throttle+shift response.
Why i'm skeptical : My car is in dynamic when i turn it off. When i start it, and move from park to D, the transmission is automatically in "D". This would imply that you must put the transmission into "S" to activate dynamic throttle response at all times and by default its not in dynamic even though its selected? Don't think so.
In an effort to save fuel (my guess), the car always starts with the engine/trans in 'D' mode. Despite how you left it or configured individual mode. The only way to change this is to modify settings in VCDS. The only way I've found that works is to *always* have the car start in dynamic mode. You can read more about this in the VCDS thread...or there's another thread currently at the top on 2013 VCDS mods.
Bookmarks