Dumb question about DSG

Oct 12, 2006 1 Replies

Howdy all.



Been driving my new Jetta with the DSG, and I was wondering the following:



With an automatic transmission, I vaguely understand the funciton of the slushbox when the car is in gear but stopped at a light. With a manual, you step on the clutch to disengage the engine from the drivetrain.



Ok, how does it work with the DSG? Is it just a matter of programming in the computer that disengages the clutch when the car comes to a start? Or is it something mechanical?



With an automatic, when you are at a red light and shift into neutral, you see a blip in the tachometer as the load is taken off the engine. I don't get that with the DSG if I am stopped and pop it in neutral the tach does not move at all, although I do feel/hear it in the engine (sounds like it goes from under load to no load). This is all with the DSG in automatic mode.



Thanks in advance for any and all answers.


-Chris



The computer has to disengage the clutch at the traffic light so shifting to neutral has no effect that I know of. You have two clutches inside the transmission and if either of them is engaged the car is moving or the engine has stalled.

I think that neutral is likely the state that both clutches are disengaged. I do not know if there is any true neutral that actually disengages the gears (like a manual transmission would).

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