Possible DSG Mechatronic Issues

[FJ Steve]

The only quib I have about the dsg is low speed down shift.

Try this:
Cruise in 4th or 5th in M mode
Shift down a gear and then accelerate (do this quickly but in that order)

I find I get a rather long lag where I have no drive until the next gear is engaged.

This is where it gets me, cruising along in traffic in 4th, see a gap in traffic and wish to change lane. Shift down, accelerate, and at the same time pull out into the next lane, and I get no power! Not fun when if you cars coming through on the other lane.

Now try this second test:
Cruise in 4th or 5th in M mode
Accelerate first, and THEN shift down a gear. It's almost instantaneous.

So the lesson learnt is get into the right gear before you do what you want to do, be it lane changes or 2nd gear hairpin corner.

Just like riding a motorbike.....set your gear for the exit of the corner, before you actually get to the corner....trail the accelerator through the corner, gun it at the apex/exit.

[G-rig]

Just like riding a motorbike.....set your gear for the exit of the corner, before you actually get to the corner....trail the accelerator through the corner, gun it at the apex/exit.

Thats the same as driving lessons i had in the car as well. You are meant to select the gear and have it completely engaged before the corner.

[Maverick]

Thats the same as driving lessons i had in the car as well. You are meant to select the gear and have it completely engaged before the corner.

DSG allows you to change in the corner because it changes so quickly. This is often mentioned in the reviews as they have the ability to change gears in the corners without unsettling the car.

[G-rig]

DSG allows you to change in the corner because it changes so quickly. This is often mentioned in the reviews as they have the ability to change gears in the corners without unsettling the car.

It may be able to but don't think that's good practice and would still unsettle it. Choose your speed for the corner first!

[CatonaPC©]

DSG allows you to change in the corner because it changes so quickly. This is often mentioned in the reviews as they have the ability to change gears in the corners without unsettling the car.

This may be so, but my experience in the TDI would indicate that in some circumstances the mid-corner gear change and consequent change in torque does unsettle the car. Having said that, the DSG is extremely competent and smart enough in D or S mode not to pull a stunt like that, anyway.

[Maverick]

It may be able to but don't think that's good practice and would still unsettle it. Choose your speed for the corner first!

Why? The reasons for not changing mod corner are no longer valid with a DSG, there is no interruption to power and the car will not become unsettled. If the car can safely change gears mid corner and this gives it an advantage why not use it?

[maca]

Why? The reasons for not changing mod corner are no longer valid with a DSG, there is no interruption to power and the car will not become unsettled. If the car can safely change gears mid corner and this gives it an advantage why not use it?

Funny enough my DSG feels like a normal manual when turning. As in I feel the power cut, clutch engage, gear change, power restored. Strange happening IMO.

[chrisgti]

Why? The reasons for not changing mod corner are no longer valid with a DSG, there is no interruption to power and the car will not become unsettled. If the car can safely change gears mid corner and this gives it an advantage why not use it?

maybe not in a 32 and not so much on a ko3 either but if you're in a higher gear changing down into a peaky powerband would unsettle the car

[Maverick]

Funny enough my DSG feels like a normal manual when turning. As in I feel the power cut, clutch engage, gear change, power restored. Strange happening IMO.

That would be because you have a tractor, you barely notice any interruption in power delivery on the GTI.

[maca]

That would be because you have a tractor, you barely notice any interruption in power delivery on the GTI.

Ahh yes that must be the technical explanation.

It's quite ok to say "I don't know" in these sort of situations.

[Maverick]

Ahh yes that must be the technical explanation.

It's quite ok to say "I don't know" in these sort of situations.

The DSG changes at the same speed no matter what it's connected to. If the TDI feels sluggish between gears (like the one I drove today) than I don't think it's unreasonable to make that assumption

[maca]

The DSG changes at the same speed no matter what it's connected to. If the TDI feels sluggish between gears (like the one I drove today) than I don't think it's unreasonable to make that assumption

If they behave the same regardless of what they're connected to, it shouldn't matter weather it's a TDI or TSI.

[Maverick]

If they behave the same regardless of what they're connected to, it shouldn't matter weather it's a TDI or TSI.

Except it does. Both engines have different characteristics and this affects the DSG operation, I assume that's it's down to torque, speed of the engines etc.

http://forums.vwvortex.com/zerothread?id=3289959

"Having spent extensive time in both a GTI DSG and my car (TDI DSG), I'd say that the DSG coupled to the 2.0T in the GTI definitely shifts faster. But, it also shifts differently. It's hard to explain, but it just shifts differently compared to my TDI."

[maca]

Except it does. Both engines have different characteristics and this affects the DSG operation, I assume that's it's down to torque, speed of the engines etc.

http://forums.vwvortex.com/zerothread?id=3289959

"Having spent extensive time in both a GTI DSG and my car (TDI DSG), I'd say that the DSG coupled to the 2.0T in the GTI definitely shifts faster. But, it also shifts differently. It's hard to explain, but it just shifts differently compared to my TDI."

Fair enough. After all, our TDIs aren't really made for perfomance.

[85turbo]

Fair enough. After all, the TDI isn't a performance engine.

i think the Pug and Audi guys at Lemans might beg to differ there