Another dead DSG, ...or maybe not?

[Ryeman]

Good posts.
So why could it be detrimental to use neutral instead of drive?
It shouldn't matter when shutting it down at roadworks with the engine off and I guess it's a bit pointless idling in neutral if the clutch is disengaged while you have your foot on the brake. It's just from a technical point of interest.

I shall continue to use neutral n handbrake. All I want is reduced clutch plate wear. I'll take it up with service techs also.
I reverse in to my tight carport but luckily it's a slight downhill slope and with my left foot on the brake pedal it's easy but I hadn't realised the intracasies of reversing on the flat.

[CardinalSin]

Another thing I do with mine, cruising on country roads, is to shift it into manual so it locks in 6th gear to stop it changing down to 5th and 4th when 6th is quite capable of doing the job and holding the speed.
You wouldn't be changing down in a manual, you would let the boost do it's job.
That's got to be the best way to bed the rings in when it's new too. It keeps the revs down but lets you use max boost to force them out before it the bore starts to glaze and harden.

[Ryeman]

Another thing I do with mine, cruising on country roads, is to shift it into manual so it locks in 6th gear to stop it changing down to 5th and 4th when 6th is quite capable of doing the job and holding the speed.
You wouldn't be changing down in a manual, you would let the boost do it's job.
That's got to be the best way to bed the rings in when it's new too. It keeps the revs down but lets you use max boost to force them out before it the bore starts to glaze and harden.

Engineers now take into account that almost nobody knows what goes on, particularly during the running-in process, so I sometimes wonder whether 'our' knowledge is being used to solve a problem that no longer exists.....in other word just go as per the manual.
In interesting to examine the Penrite website and notice the level of technical data compared to that of a vehicle engines metallurgy for instance.

[Ryeman]

I was in the habit of coasting up to the lights in neutral and if the lights changed quickly simply slip into drive with zero transmission shock......not sure with the DSG though, that's why I want to know exactly what goes on......and don't need a lecture on it being unsafe as I certainly don't if it is.

[CardinalSin]

Engineers now take into account that almost nobody knows what goes on, particularly during the running-in process, so I sometimes wonder whether 'our' knowledge is being used to solve a problem that no longer exists.....in other word just go as per the manual.
In interesting to examine the Penrite website and notice the level of technical data compared to that of a vehicle engines metallurgy for instance.

The sites that suggest using high torque to bed in the bores show some very convincing pics of the difference between the 2 methods when you look at the bores and pistons up close. If they are genuine and the materials being compared are similar it looks good to me but I agree we don't know for sure.
I have an engineering background and it seems right to me.

[CardinalSin]

I was in the habit of coasting up to the lights in neutral and if the lights changed quickly simply slip into drive with zero transmission shock......not sure with the DSG though, that's why I want to know exactly what goes on......and don't need a lecture on it being unsafe as I certainly don't if it is.

They mention somewhere about being stationary before selecting drive or reverse. I'm surprised they don't just lock the selector up unless you've stopped. Chances are, if it lets you select neutral and then drive, on the move, then it's not detrimental but I wouldn't want to find out the hard way.
You can stop it changing down under brakes by selecting manual and of course it has to shift down at about 1000rpm because it hasn't got a torque converter. I like that because in a manual I use the engine to slow down, not revving the guts out of it, for economy and safer driving. So the shifting down at 1000rpm lets me drive without braking a lot of the time.

[Ryeman]

They mention somewhere about being stationary before selecting drive or reverse. I'm surprised they don't just lock the selector up unless you've stopped. Chances are, if it lets you select neutral and then drive, on the move, then it's not detrimental but I wouldn't want to find out the hard way.
You can stop it changing down under brakes by selecting manual and of course it has to shift down at about 1000rpm because it hasn't got a torque converter. I like that because in a manual I use the engine to slow down, not revving the guts out of it, for economy and safer driving. So the shifting down at 1000rpm lets me drive without braking a lot of the time.

I agree with regard to the lack of lock out....it's inevitable that at speed it will get knocked into N so you would think the engineers would have insisted on it if it was detrimental to the 'box'.
Its SO easy it almost seems designed to enable it.
I've heard that European trans engineers are working on 'freewheeling' for an incremental emission/economy improvement.

[VW Convert]

I've heard that European trans engineers are working on 'freewheeling' for an incremental emission/economy improvement.

VW already have that, I had a brand new 130TDI Passat loan car last time my car was being serviced, it had free wheeling on overrun.

Passat Sedan variants < Passat Sedan < Models & Pricing < Volkswagen Australia

Cheers

George

[CardinalSin]

I agree with regard to the lack of lock out....it's inevitable that at speed it will get knocked into N so you would think the engineers would have insisted on it if it was detrimental to the 'box'.
Its SO easy it almost seems designed to enable it.
I've heard that European trans engineers are working on 'freewheeling' for an incremental emission/economy improvement.

How about this scenario. It's in 6th and you slip it into neutral. The clutches were at 6th and 5th as I understand it. You slow to say 30kph and slip it back into drive. Did the clutches pre-select lower gears suitable for that speed or do they select them when it shifts into drive or is it bad news?

They could program in an economy setting where it changes up earlier, doesn't change down under brakes, slips into neutral off throttle[sailing] and only charges under brakes if the battery is above a certain level of charge.

VW are already using sailing i with the 7 speed dry clutch DSG.

DSG Freewheel activation

[CardinalSin]

VW already have that, I had a brand new 130TDI Passat loan car last time my car was being serviced, it had free wheeling on overrun.

Passat Sedan variants < Passat Sedan < Models & Pricing < Volkswagen Australia

Cheers

George

You beat me to it. That Passat is a 6 speed DSG too.