DSG: Problems, Questions, Likes and Dislikes

[brimway]

Should also add it is with APR tune, TBE and CAI

[Tobes_WIR35]

I don't see this issue as being a "fault" with the gearbox, it is more than likely a fail-safe to prevent destroying the gearbox, I guess as far as the gearbox is concerned, it would rather knock itself into neutral than knock itself to smitherines.... In straight line acceleration, it is probably best to just stick it in "D" or "S" and let the brilliant piece of engineering work it's magic...

[PTW]

In manual mode, is the upshift delay time using the paddle throttle positon dependent? Downshifts are instantaneous but upshifts are delayed on mid throttle.

[Corey_R]

Downshifts (3rd to 2nd etc) are throttle dependent too. According to the VAG documentation, you can experience up to 800ms of no power transfer during a downshift depending on the throttle load (or lack thereof). From memory of the last time I read this documentation, much of the reason for the delay is a lack of load to match the revs quick enough, so it's a manual throttle blip with both clutches disengaged.

The "upshift delay" (2nd into 3rd etc) is different as it's more of an electronic delay (you press the button, but nothing happens for "a fraction of a second"). But when it does shift, there is no loss of power transfer, it just doesn't happen straight away. The VW documentation doesn't discuss this delay (that I can find), so I'm not sure if it's just purely electronic lag, or if it's for torque and gearbox protection etc.

[PTW]

Thanks for the info I've only just got back home and had a chance to take it for a bit of a run. I will explore the throttle position thing on upshift more. The owners manual doesn't say anything about it really

[wai]

Now here's an odd one.

There is a street in Chatswood that is very steep. No problem driving up it, but when I get to the top and stop, on getting moving again, the DSG does not want to change up for quite a few seconds. It is not slipping or anything like that, just that it takes around 5 or more seconds of driving before the transmission will change up, no matter the speed. It does not redline but the rev limiter does kick in and stop you over revving the engine.

There are no alarms or other indications.

This has now happened twice when I have had to get to a meeting in Chatswood.

For those interested, this is driving south on Edgar Street and then climbing up to Centennial Avenue when I have to stop because of a spoon drain. Then it is a left turn into Centennial Avenue and now the transmission will not change up for a few seconds.

It is the combination of circumstances, because I drive up similar slopes elsewhere without any issues. It is almost as though the slope is causing issues after coming to a complete stop and then starting off again. I don't lose drive, just that it won't change up for a few seconds.

As I said, there are no alarms or other indications so it is doubtful that any faults would be logged.

[Candyman]

So change up using the paddles ???

Then, to get back to full auto, either let it do itself, or hold the right paddle in

It is a manual gearbox after all

[Ryan_R]

You need more power to go uphill which is why it will hold the gear longer, nothing too unusual about that, although it can take you by surprise sometimes. Sometimes after driving in manual mode and going back to D, it'll hold first gear longer than I expected, which makes me panic and think I'm still in M, which used to make me shift up in Neutral, which makes you panic just a tad more and look a bit silly :p

[wai]

So change up using the paddles ???

Then, to get back to full auto, either let it do itself, or hold the right paddle in

It is a manual gearbox after all

The thing is that it catches you by surprise because it is just this particular combination of roads, slopes and stops that does it.

By the way, it is operating in full auto mode.

---------- Post added at 12:57 PM ---------- Previous post was at 12:51 PM ----------

You need more power to go uphill which is why it will hold the gear longer, nothing too unusual about that, although it can take you by surprise sometimes. Sometimes after driving in manual mode and going back to D, it'll hold first gear longer than I expected, which makes me panic and think I'm still in M, which used to make me shift up in Neutral, which makes you panic just a tad more and look a bit silly :p

The problem here is that when I come to a complete stop, this is at the crest of the slope and the road I turn into is not at all steep. It goes up the steep slope in D5. WHen I come to a stop at the top it drops back to D1, but then changes up to D2 and stays there until it figures things out. Once it has done this it is quite happy to go up into D3 or even D4 at the same speed and load.

Ah well, they all have their quirks. On my Torana I had to manually change the auto down into 2 when making a left turn near my house because of the change in slope, otherwise the transmission would flair not knowing which gear to select. At least eh DSG holds one gear.

It just catches you by surprise and then it is a case of trying to respond. In both cases I have been caught out and by the time I put it into manual mode to change up or even to put it into S, it had resolved itself.

[Ryan_R]

A quick poke on the gas pedal then backing off usually sorts it for me.

[chylld]

For those interested, this is driving south on Edgar Street and then climbing up to Centennial Avenue when I have to stop because of a spoon drain. Then it is a left turn into Centennial Avenue and now the transmission will not change up for a few seconds.

i work in chatswood, will give this a try on the way home. am i trying to floor it once i turn onto centennial?

[dArK5HaD0w]

Now here's an odd one.

There is a street in Chatswood that is very steep. No problem driving up it, but when I get to the top and stop, on getting moving again, the DSG does not want to change up for quite a few seconds. It is not slipping or anything like that, just that it takes around 5 or more seconds of driving before the transmission will change up, no matter the speed. It does not redline but the rev limiter does kick in and stop you over revving the engine.

There are no alarms or other indications.

This has now happened twice when I have had to get to a meeting in Chatswood.

For those interested, this is driving south on Edgar Street and then climbing up to Centennial Avenue when I have to stop because of a spoon drain. Then it is a left turn into Centennial Avenue and now the transmission will not change up for a few seconds.

It is the combination of circumstances, because I drive up similar slopes elsewhere without any issues. It is almost as though the slope is causing issues after coming to a complete stop and then starting off again. I don't lose drive, just that it won't change up for a few seconds.

As I said, there are no alarms or other indications so it is doubtful that any faults would be logged.

sounds like "hill-hold" to me. i've got that feature on the RS. on an incline, it will hold the car for 2-3 secs before the car moves off.
gives the driver enough time to hit the gas, preventing the "rollback".

though i don't know if this is the same thing on the golfs.

[chylld]

sounds like "hill-hold" to me. i've got that feature on the RS. on an incline, it will hold the car for 2-3 secs before the car moves off.
gives the driver enough time to hit the gas, preventing the "rollback".

though i don't know if this the same thing on the golfs.

the golf's hill-hold is the same, but the situation wai is describing is after he's climbed the hill, it still hesitates to upshift.

to me it sounds like the car put itself into a low-gear mode for the hill, and took longer than necessary to realise there was no more hill.

[wai]

the golf's hill-hold is the same, but the situation wai is describing is after he's climbed the hill, it still hesitates to upshift.

to me it sounds like the car put itself into a low-gear mode for the hill, and took longer than necessary to realise there was no more hill.

The problem is that when I come to a stop at this particular intersection, the car is level. Having said this, it could well have something to do with the detection of the incline.

I suppose it is a by-product of the complex control systems, and comes down to a case of the the particular combination leaving the system believing the car is still on an incline and needs to remain in the lower gear.

I will get a chance to test it again as I make trips to the Engineers Australia presentations generally monthly. Next time, I will try and select manual mode before I go up the hill and see if that changes things.

Probably like the Oprical Park Assist sensors and controls. It can be a touch annoying because if you are trying to get out of a tight parallel parking situation (the other drivers have not maintained the 1 metre separation), you reverse back until you get the rapid beeping. You put the car into drive, but the radio display and beeping carries on for another 5 or more seconds. Maybe VW do not want systems switching in and out too quickly so build delays into things. Then along comes a particular combination of circumstances and you get odd things happening.

[Ryan_R]

Yeah, the car has a lot of sensors, but unlike you, it still doesn't have eyes to see ahead, hence the delay. I guess that's what you get when you have techonology that tries to be smart and adaptable.