DSG: Problems, Questions, Likes and Dislikes

[logger]

Didn't really get the whole idea behind S mode, as D+ [gear selectable] mode was more fun, and why would one not use that to change gears at their discretion anyway, when booting it?

Because S is quicker.
At least it will be for most drivers. As good a driver as I am (not), S mode allows me to 0-100 in 6.8sec. Skill level required is minimal to zero. OTOH if I was to try same in D+ I'd probably be a second slower even if I did get the timing right and not stuff it up.
I agree D+ is more fun though.

[Corey_R]

Yeah - even in the Autocar video between the DSG and the manual, the S mode was used. I mean, this guy was talented enough to do flat-shifting in the manual, yet in the DSG he chose to let it pick the shift points.
Having said that Buller_Scott could have been referring to regular driving, rather than the traffic lights GP

[djooz]

118tsi clunk/vibration when changing gear in S mode

Hi All,

Well my 1st thousand km are done so I thought it wouldn't hurt to have a lil fun in S mode....
Anyways, I understand there is no launch control system in these (or is there?) so with a lil brake pressure, got the revs to bout 2.5k rpm and popped the brake, after a bit of fuss from the TC, she got underway quite nice ( well for me anyway) but for the 1-2 and 2-3 change I got this clunk/vibration (could feel it thru my body), is this the electronic diff lock engaging? it wasn't the most pleasant sound...DSG box btw

[logger]

No its not the electronic diff lock engaging. There is nothing to engage because this diff lock is simply a sub system of the ABS, that applies applicable brake to distribute the torque. It does not actually manipulate anything in the diff. Perhaps the clunk/vibration was the DSG doing a rough job of the changes, as it is not "expecting" you to drop the clutch with 2.5k rpm. You should not be able to get it to 2.5k with your foot on the brake and it in D or S. From memory mine is limited to a bit over 1k when in stationary with foot on the brake and D or S selected. But about to go for a spin so will re check. Maybe they have changed things with the newer builds, but the DSG7 does not have launch control and allowing launch from 2.5k would go against the design philosophy of the clutches lasting the life of the car.

[Maverick]

Very true! This is a frustration of mine. There should be some way to reverse the DSG tiptronic so it matches the direction that a traditional sequential gearbox uses as you mention (as with race cars and motorcycles etc).

There is, pull the shifter assembly out of the car and make a simple change on the horizontal PCB. There are two separate hall effect sensors used for the gear up and gear down. Changing the operation of these will not impact on any other area of the operation of the gearbox nor throw any codes.

Should take less than 2 hours start to finish to make the mod and most of that is getting the assembly in and out of the car.

[Corey_R]

Lol... thanks Maverick. I was thinking more along the lines of an option within the MFD or something which didn't require me pulling the car apart

[logger]

.. so with a lil brake pressure, got the revs to bout 2.5k rpm and popped the brake, after a bit of fuss from the TC, she got underway quite nice ( well for me anyway) but for the 1-2 and 2-3 change I got this clunk/vibration (could feel it thru my body), is this the electronic diff lock engaging? it wasn't the most pleasant sound...DSG box btw

Just checking back in on this djooz. Can confirm my 118tsi will not allow itself to rev above ~1200rpm with the DSG7 in D or S and a foot even lightly on the brake. So yours achieving 2,500 rpm in this state strikes me as odd. unless you are doing it in N and slamming it to D with the revs up which I doubt. But even doing this in mine drops the revs straight back to about 1k.

[AdamD]

...unless you are doing it in N and slamming it to D with the revs up which I doubt. But even doing this in mine drops the revs straight back to about 1k.

You even tried that!? I feel very very sorry for your DSG!

[logger]

You even tried that!? I feel very very sorry for your DSG!

Dont worry my DSG is fine. I first did it at much lower revs to ensure it would operate as I expected.
There is a sole mechanical connection between the selector and Gearbox, being the cable for the parking lock.
Everything else is electronic and fully computer controlled. Moving the selector from N to D signals the mechatronic unit the driver has commanded D. It is not going to be actioned by the mechatronic unit until the criteria for selection is met. Hence the RPM drop.

[djooz]

Just checking back in on this djooz. Can confirm my 118tsi will not allow itself to rev above ~1200rpm with the DSG7 in D or S and a foot even lightly on the brake. So yours achieving 2,500 rpm in this state strikes me as odd. unless you are doing it in N and slamming it to D with the revs up which I doubt. But even doing this in mine drops the revs straight back to about 1k.

Right then, Thanks for the reply Logger. So do I have a problem? I'll book it in at the stealership....For the record I'm not going from N to D/S, I'm rough with cars, but not THAT rough. Apart from the fact mine is reving a too high (maybe 2.5 was generous, lets say between 2-2.5) no one else experiences this wonderful sound under hard loud pedal in S mode at the gear changes 1/2 & 2/3?
Keep in mind I've never owned an auto, let alone a automated manual, so honestly don't know if this clunk is normal, I vaguely remember the test drive car making a similar sound..... Maybe I'm just paranoid, I don't really want to take it back to the dealership, they are a pack of ***** *****

Thanks
Djooz

[logger]

I do not know if it is a problem. I would question why you are not seeing the EPC throttling your revs when you are in gear (D or S etc), stationary and have your foot on the brake though. that does not sound right to me unless they have changed things.

[AdamD]

Dont worry my DSG is fine. I first did it at much lower revs to ensure it would operate as I expected.
There is a sole mechanical connection between the selector and Gearbox, being the cable for the parking lock.
Everything else is electronic and fully computer controlled. Moving the selector from N to D signals the mechatronic unit the driver has commanded D. It is not going to be actioned by the mechatronic unit until the criteria for selection is met. Hence the RPM drop.

Excellent, that's a relief.

So presumably this also protects the gearbox from those used to automatics, who move the selector from R to D (or vice versa) while the car is still rolling.

[logger]

So presumably this also protects the gearbox from those used to automatics, who move the selector from R to D (or vice versa) while the car is still rolling.

Yes it does. Works very nicely. Reverse a bit, then while still moving backwards, lightly press brake pedal, it will allow you to select D and it will keep rolling backward depending on slope. Then press accelerator, clutch will engage and you will drive of forward. Much like in a manual really.

[djooz]

I do not know if it is a problem. I would question why you are not seeing the EPC throttling your revs when you are in gear (D or S etc), stationary and have your foot on the brake though. that does not sound right to me unless they have changed things.

Cheers, Thanks Logger. Whats the best way to reset ecu etc on these golfs, the usual battery disconnect and leave it for an hour or so? Will this get my car back to a factory default? Sorry to sound stupid, but im a nerd for a living so the factory reset sounds most logical to me, if it can be done.
Don't flame me, my other car is a 94 Nissan Patrol thats mechanical everything....

djooz

[Stoney!]

What should it rev to on launch control logger?

Stoney!