Wondering about this.
It's been pretty damn cold on and off where I am in the last month or so. My DSG behaves differently upon taking my foot off the brake in these conditions. Das fragliche auto ist a 2010 Jetta TDI sedan. 42.5 something on the clock.
Where I park this unit is slightly downhill, so when I back out I'm going slightly -- wait for it -- uphill. Very slightly. Except in this ass-cold of late, when I shift into reverse and take my foot off the brake the car will back most of the way out by itself, i.e., with no accelerator pedal input. But in this cold it won't do that and needs some right foot added to even get rolling.
Now, I know that the DSG is in reality an automated manual (or a manual with an automated option, or whatever we'd care to call it) and not a true (or "conventional") automatic with planetary gears, torque converter, fluid coupling only, etc etc. Point being that it's a solid mechanical coupling, whereas an automatic isn't. So this sort of behavior in serious cold with an old-school automatic would make more sense to me (cold trans fluid, all that).
But this I'm not sure I get. I also know the DSG is filled with something, as it was explained to me, in between conventional auto-transmission fluid and the gear oil that goes in a manual. Still, I'm not sure I understand this cold-weather hesitation of sorts.
Wondering if anyone else experiences this, if it's normal, how/why it happens, if it's actually to do with TDI and not DSG at all, etc etc. All input welcome.