Resetting DSG and performing adaptation

[wokwn]

On Wednesday I reset the DSG in my 07 Jetta TDI.

The aim was to eliminate the rough 2 > 1 shift I get when rolling up to lights with light braking. I wouldn't call the shift violent but it's definitely rough.

The procedure is here.
It looks quite easy but having the gearbox make loud thumping noises and the whole car shaking (while performing the basic settings) is quite disconcerting. It also almost stalled when rolling down my driveway after the reset but hasn't done it since the 'defined test drive'. A smarter person than me would have written down the adaptation values before and after to see if anything was actually changed.

The result:
The rough shift is still there. I have a colleague with a GTI that does the same thing (not every time) so it must be normal. I tend to drop into "S" when rolling up to lights anyway to get the nice smooth downchanges and engine braking.

However, pulling off from a stop is much smoother now (there was often a jolt). This could be just because the gearbox needs to re-learn my driving style but otherwise I would call the procedure beneficial, if only in a 'placebo' manner.

I have almost 25,000k's on the clock after 1 year and one day.

[STV4SYT]

What i think would be really great on these is to have more than 1 program. based on which key is used to start the car or something. Everytime my other half drives the car i get back in and it has adapted to her style which is very different to mine and it takes me a while to get it to adapt back to me. for now i have banned her from driving the golf except in emergency situations, but that is obviously not doing me any long term favours. hehe

[wokwn]

Lol, I can see where that would be a problem.

[Logzy]

I get the same thing at a certain slow speed when going from 3-2 or 2-1 not sure which one it is, possible the 2-1
I'll try the shifting into "s" when slowing and see what difference that makes.

[wokwn]

I should probably clarify why I mean by shifting in to S to slow down.

Even in my previous car (a TE Magna with 4spd slushbox) I usually dropped in into 3 and 2 when coming up to lights (e.g. on a freeway offramp). It took a fair bit of practice to know what revs to drop a gear on the slushbox. It's probably because I learnt to drive in a manual and have spent a reasonable amount of time in trucks.

The DSG makes it really simple - no matter what the speed, put it into S with no throttle applied. It slows you down nicely with *perfect* revmatched downshifts and the excellent high-compression diesel engine braking. I've found the tiptronic downshifts to be pretty ordinary usually but the S mode cannot be beaten. I usually put it back into D just before the car stops rolling to avoid a change into 1 while rolling which is usually a bit of a lurch.

I never got the rough 2-1 problem under moderate to heavy braking, only under light braking.

[DAN682]

I just did a search and found this thread.

My DSG has started messing around a little, I have a GT Sport TSI. If the aircon is on it is much worse but happens even with it off. If I release the brakes, it feels like the clutch is being dropped making the car bunny hop. It never stalls but it does not feel right.

To perform the reset in the first post, how do you actually get into that mode? Do I need a computer plugged into the OBD port or something?

[wokwn]

To perform the reset in the first post, how do you actually get into that mode? Do I need a computer plugged into the OBD port or something?

Yep you need a VAG-COM. Thats a USB dongle -> OBD thingy.

[Buckets]

What i think would be really great on these is to have more than 1 program. based on which key is used to start the car or something. Everytime my other half drives the car i get back in and it has adapted to her style which is very different to mine and it takes me a while to get it to adapt back to me. for now i have banned her from driving the golf except in emergency situations, but that is obviously not doing me any long term favours. hehe

The ban isn't just about the STYLE of driving Steve....but where she tried to park it, right???

[DAN682]

Yep you need a VAG-COM. Thats a USB dongle -> OBD thingy.

d'oh!

off to VW I go

[BarneyBoy]

I just did a search and found this thread.

My DSG has started messing around a little, I have a GT Sport TSI. If the aircon is on it is much worse but happens even with it off. If I release the brakes, it feels like the clutch is being dropped making the car bunny hop. It never stalls but it does not feel right.

Know what you mean, Dan. Mine started doing that ever since my 15K service. Not every time, but there seems to be a bit of 'snatch' when you take your foot off the brake when you take off. I'd been pretty impressed with the DSG 'til now.

I'm reluctant to get the stealer involved, as they appear to have a lot of trouble with the simplest of things (4 months to replace a tail lamp for example). I'm interested in trying the reset, so I'll give that a shot in the next couple of days.

[BarneyBoy]

I usually put it back into D just before the car stops rolling to avoid a change into 1 while rolling which is usually a bit of a lurch.

I never got the rough 2-1 problem under moderate to heavy braking, only under light braking.

That's odd - in S, mine won't drop into 1st until the car has stopped - 2nd is as low as it will change unless you stop or nail it (where it'll drop into 1st).

[wokwn]

That's odd - in S, mine won't drop into 1st until the car has stopped - 2nd is as low as it will change unless you stop or nail it (where it'll drop into 1st).

Probably the difference between diesel and petrol. The final drive ratio is quite a bit taller on the diesel engines.

Mine will drop into 1 even in D if you nail it at say 25k's or under. Then massive wheel hop and power cut due to TCS (and a nice cloud of smoke out the back).