DSG gearbox glitch
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Discussion

TonyTony

Original Poster:

1,882 posts

188 months

Monday 10th August 2015
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I've noticed sometimes when I have it in manual mode or just override auto/sport mode with the paddles when I'm up shifting from 3rd it downshifts to 2nd instead. confused

The gearbox is smooth like usual and no warning lights or jerkiness, anybody had anything similar?

TonyTony

Original Poster:

1,882 posts

188 months

Saturday 17th October 2015
quotequote all
Bumping this instead of making a new topic.

Any techies heard of anything similar?

Local specialist said they might be a software upgrade for the DSG, do you have to pay for software upgrades and how do you find out if there is one and if yours is up to date?

Dr G

15,989 posts

272 months

Saturday 17th October 2015
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Dealer with your chassis number can log in and see if there are any applicable updates.

They are generally chargeable if the car is not under warranty and it's simply an update rather than a service action or recall.

TonyTony

Original Poster:

1,882 posts

188 months

Saturday 17th October 2015
quotequote all
Dr G said:
Dealer with your chassis number can log in and see if there are any applicable updates.

They are generally chargeable if the car is not under warranty and it's simply an update rather than a service action or recall.
Ahh thanks.

I take it you haven't heard of similar problems in the past? If it isn't a software update I hope its not something that's going to break the bank! frown

TonyTony

Original Poster:

1,882 posts

188 months

Sunday 19th June 2016
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I've had a static and road test diagnostic done and absolutely no faults found with the gearbox/engine or paddles.

No recalls and the software is up to date.

The downshift and bouncing off the limiter has definitely happened multiple times though. confused

Blaster72

12,698 posts

227 months

Sunday 19th June 2016
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Does it ever do it if you use the gear selector in manual rather than the paddles? I'm thinking it could be a fault with the steering wheel wiring.

If you know someone who has VAGCOM you can check the output of the paddle switches while you move the steering about and see if there is anything strange going on.

TonyTony

Original Poster:

1,882 posts

188 months

Sunday 19th June 2016
quotequote all
Blaster72 said:
Does it ever do it if you use the gear selector in manual rather than the paddles? I'm thinking it could be a fault with the steering wheel wiring.

If you know someone who has VAGCOM you can check the output of the paddle switches while you move the steering about and see if there is anything strange going on.
No its only happened with the upshift paddle on the wheel.

On the road test I constantly clicked the paddle driving around and no faults happened or were logged.

It's completely random when it happens so not much chance of me replicating it with it plugged in. frown

Blaster72

12,698 posts

227 months

Sunday 19th June 2016
quotequote all
Ah ok, it's a bit of a strange one. Is it the original steering wheel, ie did the car come with paddles?

I can't say I've heard of this sort of fault before.

Royce44

395 posts

143 months

Sunday 19th June 2016
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+1 for steering wiring.

does it do it if you change manually using the gear stick itself?

also an oil change anyways seems to solve 90% of the dsg issues

TonyTony

Original Poster:

1,882 posts

188 months

Monday 20th June 2016
quotequote all
Its all standard and its a 12 plate that's only just gone over 18k.

The selector stick changing seems to be fine so I guess it the the wiring to the paddle or the switch, but no faults have been logged and none can be found actively using it on diagnostic.

All the googling I have done the only paddle faults I can find are just the paddles stopping working, nothing like this!

I recall it happening when the steering wheel is straight though, but it's completely intermittent.

Maybe just hope its a glitch in the system that sorts itself out. wobble

cayman-black

13,268 posts

246 months

Monday 20th June 2016
quotequote all
TonyTony said:
Its all standard and its a 12 plate that's only just gone over 18k.

The selector stick changing seems to be fine so I guess it the the wiring to the paddle or the switch, but no faults have been logged and none can be found actively using it on diagnostic.

All the googling I have done the only paddle faults I can find are just the paddles stopping working, nothing like this!

I recall it happening when the steering wheel is straight though, but it's completely intermittent.

Maybe just hope its a glitch in the system that sorts itself out. wobble
Well its eight months on and its still there? so there must be a problem somewhere.

catso

16,529 posts

297 months

Monday 20th June 2016
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Is your battery OK? I ask because I have an '04 A3, 3.2 DSG and the gearshift works perfectly but on a few occasions when the battery has been a bit low on charge I have had random electrical 'oddities' usually just warning lights when there is actually nothing wrong but twice the gearbox has misbehaved, eventually ending up in neutral.

Switching off and restarting would cure it, presumably because then the battery has more power after having been run for a while? but I only ever had faults shortly after starting if the battery wasn't properly up to charge.

Ultimately a new battery fixed it...

TonyTony

Original Poster:

1,882 posts

188 months

Monday 20th June 2016
quotequote all
cayman-black said:
Well its eight months on and its still there? so there must be a problem somewhere.
It happened a few times last year, I don't use the paddles that often but when I figured out what was causing it I stopped using them altogether. It just started bugging me though incase there was a bigger problem with the gearbox so I took it in for diagnostic about a month ago.

The advice is just wait until it gets worse or happens again and see if it flags up a fault because not knowing exactly what it is, you don't know if the repairs/changing things are making any difference.

More detailed description of what actually happened:

Its happened driving at slow speeds upshifting with the paddle and also hard launch in Sport mode then shortshifting up with the paddle before the redline.

You hit upshift paddle and the car just downshifts, but it seems to bypass the gearbox safety of it not letting you downshift when you are already going too fast for that gear and it screams and bounces off the limiter and gets stuck there until you knock it into another mode to reset it.

It worried me when it did it accelerating because you're at about 50mph accelerating and it shifts down into a gear you shouldn't even be able to drop too and the car massively engine brakes and howls.

Its never actually happened with somebody else in the car and couldn't replicate it in the 30-40+ mins of diagnostic road testing.

For all anybody knows I've imagined it! cry

Royce44

395 posts

143 months

Monday 20th June 2016
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id remove the steering wheel and check the 2 ribnons on the back for damage. my money is on the clock spring. cant imagine its that ecpensive to replace. £100 all in max id say

TonyTony

Original Poster:

1,882 posts

188 months

Thursday 1st September 2016
quotequote all
Since I got diagnostics done it never did it again, then I got an exhaust fitted a while back and used the paddles alot more.

The fault happened again the the other morning! furious

As for tinkering around with stuff myself, I'm a bit scared incase I break something or make it worse. frown