DSG jerky&clunking.

[kippers007]

Hello all.
I have a skoda with 6speed dsg box,it has intermittent clunking problem.

Its still under warranty but 2 different franchise dealers could not find any fault as its intermittent, fault occurs in 1 faulty gear change during 4 hours of driving.

The fault is when taking up drive,the gearbox sometimes forgets to engage a gear for a few seconds then all the power is violently slammed into drive,This registers on the dashcam as an impact.

Sadly no error lights are lit.

I would like a dsg expert company to test the car (not do any physical work) and give me a written report,which I am willing to pay for.Then I have some ammo for my next franchise dealer meeting.
I am happy to leave the car with an independent company until they discover the fault for as long as it takes,

so can anyone recommend a dsg expert in Surrey or a 100 mile radius.

Thank you for your time.

Edited by kippers007 on Monday 25th January 13:26

[Cupramax]

With the car in warranty I'd explain the situation to Skoda UK and see what they suggest. Sometimes they have their own technical specialist or preferred dealers look at issues other dealers cant sort.

[MrBarry123]

The gearbox doesn't forget to engage a gear, the DSG isn't a typical automatic gearbox and therefore doesn't have a gear engaged all of the time when stopped i.e. it decouples itself and shifts into a false neutral.

If, whilst in D, you allow the car to creep forward for a brief moment (no more than a second) does the problem still occur or is it a smooth pickup?

If it engages the gear smoothly after you allowing it to creep then there isn't a problem - that's just how the box works; you should always allow a DSG box to creep briefly before accelerating in D for a smooth driveaway. If however the problem still persists, you do have a problem.

[SMB]

before paying to call in experts. just check the pull away as detailed above, you should always allow the clutches to engage before pressing the throttle with anything more than a light touch.

If this happens during slow down for something like a roundabout and then spotting a gap and pulling away then again it could just be that the box has expected you to stop and pulled in the clutches, if you jump on the throttle it will then lurch forward as the clutches engage with throttle applied. trial this in manual if need be to remove the issue of the computer not knowing exactly where you are on the road.

My opinion with dual clutch gearboxes is that you need to change driving style and think ahead more, get the car slowed earlier and then have the throttle engaged earlier rather than a sudden engagement.

[kippers007]

Thanks for the replies,i have contacted skoda uk who told me if a dealer cannot find a fault they cannot make a repair,after explaning that the fault (again) is intermittent and needs to be driven for an hour or 65 miles for the fault to develop and the dealer will not this.

so I would like to know of an independent Dsg expert/specialist,to get a written report,although the dealer will not entertain a report from an independent,it will be used in a claim.

I intend to sell the car at year 3 and selling it with a fault will leave me at a loss.So I intend to claim the loss back via court.

Thanks again for the replies.

[MrBarry123]

You've been to the DSG experts OP - the dealer will see, service and fix many more DSG boxes than any "expert" will.

Have you tried what we've suggested above?

[xjay1337]

MrBarry123 said:

You've been to the DSG experts OP - the dealer will see, service and fix many more DSG boxes than any "expert" will.

Have you tried what we've suggested above?

The dealers are useless at DSG boxes.
They just replace them/mechatronic units.


You can run through an easy process using Vagcom to do a "DSG adaption"
Basically you reset all of the parameters and it resets both clutchpacks settings and the electronic process which goes on behind them all.

Anyone with VCDS can do it. Go to your local VW forum , there is also a facebook group VCDS Users where you can get someone to do it for you.


http://wiki.ross-tech.com/wiki/index.php/6-Speed_D...

I would try this before looking into anything else, and if not been done lately do a genuine oil filter change and genuine oil refil on the DSG box.

Also the DSG box is run off the speed sensors from the wheels so if you have a faulty speed sensor or tyres which are of different sizes / one pair have 2mm one pair are brand new, this can also cause jerky type behaviour.

[Dr G]

MrBarry123 said:

The gearbox doesn't forget to engage a gear, the DSG isn't a typical automatic gearbox and therefore doesn't have a gear engaged all of the time when stopped i.e. it decouples itself and shifts into a false neutral.

If, whilst in D, you allow the car to creep forward for a brief moment (no more than a second) does the problem still occur or is it a smooth pickup?

If it engages the gear smoothly after you allowing it to creep then there isn't a problem - that's just how the box works; you should always allow a DSG box to creep briefly before accelerating in D for a smooth driveaway. If however the problem still persists, you do have a problem.

Nail on the head and an excellent description. I'm asked a similar question fairly often and whilst it is possible there is a fault here it's far more commonly a quickly opened throttle causing the gearbox to behave like this.

[MrBarry123]

xjay1337 said:

The dealers are useless at DSG boxes.
They just replace them/mechatronic units.


You can run through an easy process using Vagcom to do a "DSG adaption"
Basically you reset all of the parameters and it resets both clutchpacks settings and the electronic process which goes on behind them all.

Anyone with VCDS can do it. Go to your local VW forum , there is also a facebook group VCDS Users where you can get someone to do it for you.


http://wiki.ross-tech.com/wiki/index.php/6-Speed_D...

I would try this before looking into anything else, and if not been done lately do a genuine oil filter change and genuine oil refil on the DSG box.

Also the DSG box is run off the speed sensors from the wheels so if you have a faulty speed sensor or tyres which are of different sizes / one pair have 2mm one pair are brand new, this can also cause jerky type behaviour.

O, ye of little faith.

[Rich_W]

xjay1337 said:

MrBarry123 said:

You've been to the DSG experts OP - the dealer will see, service and fix many more DSG boxes than any "expert" will.

Have you tried what we've suggested above?

The dealers are useless at DSG boxes.
They just replace them/mechatronic units.


You can run through an easy process using Vagcom to do a "DSG adaption"
Basically you reset all of the parameters and it resets both clutchpacks settings and the electronic process which goes on behind them all.

Anyone with VCDS can do it. Go to your local VW forum , there is also a facebook group VCDS Users where you can get someone to do it for you.


http://wiki.ross-tech.com/wiki/index.php/6-Speed_D...

I would try this before looking into anything else, and if not been done lately do a genuine oil filter change and genuine oil refil on the DSG box.

Also the DSG box is run off the speed sensors from the wheels so if you have a faulty speed sensor or tyres which are of different sizes / one pair have 2mm one pair are brand new, this can also cause jerky type behaviour.

Wow. I bet no dealer ever considered running a Basic Setting plan...

BTW. Doing it too much will knacker your clutchpack. But hey, the experts on "the forums" are never wrong are they. Amount of times I've heard "but this forum says" normally followed by utter horsest is staggering!

[xjay1337]

Rich_W said:

Wow. I bet no dealer ever considered running a Basic Setting plan...

BTW. Doing it too much will knacker your clutchpack. But hey, the experts on "the forums" are never wrong are they. Amount of times I've heard "but this forum says" normally followed by utter horsest is staggering!

You would be surprised what dealers don't think to do

You will be fine running it multiple times (I did it like 5 times in the course of ownership on my GTI which had 115k on it by the time I sold it.

Anyway, sarcastic comments aside it may help the OP which is more than can be said on your post.

[Sheepshanks]

MrBarry123 said:

If, whilst in D, you allow the car to creep forward for a brief moment (no more than a second) does the problem still occur or is it a smooth pickup?

That's a bit awkward in cars with auto-hold.

[MrBarry123]

Sheepshanks said:

MrBarry123 said:

If, whilst in D, you allow the car to creep forward for a brief moment (no more than a second) does the problem still occur or is it a smooth pickup?

That's a bit awkward in cars with auto-hold.

Turn it off.

[fangio]

OP, if your problem is only from a standing start, then it's probably when you're too fast from footbrake to throttle, as the footbrake dis-engages the clutches. My way round it is to use the handbrake. then I can hit the throttle as hard as I like and it will never jerk.

[xjay1337]

fangio said:

OP, if your problem is only from a standing start, then it's probably when you're too fast from footbrake to throttle, as the footbrake dis-engages the clutches. My way round it is to use the handbrake. then I can hit the throttle as hard as I like and it will never jerk.

You hold the car on the handbrake when stopped?

:\

[MrBarry123]

Not sure if serious but...

OP, don't do that under any circumstances.

Unless the poster means putting the car in P and then applying the handbrake? In which case the clutches are disengaged because it's in P.

[kippers007]

Thanks for taking time to reply.
i have been offered a very decent trade in price 3k more than webuyany car even with the fault.

So sorry to say the car will be on the market soon,buyer beware.

[kippers007]

Now Purchased a superb v6 3.6 3 year old, excellent car,better than i thought it would be after reading reviews.

An ex cop car,fsh inc new auto gearbox 12k miles ago,also has 4 brand new wheels and tyres,bargin i thought.

Dealer threw in a years warranty (AA) iT'S rather nippy.

[SteBrown91]

kippers007 said:

Now Purchased a superb v6 3.6 3 year old, excellent car,better than i thought it would be after reading reviews.

An ex cop car,fsh inc new auto gearbox 12k miles ago,also has 4 brand new wheels and tyres,bargin i thought.

Dealer threw in a years warranty (AA) iT'S rather nippy.

So you have replaced your Skoda with a faulty DSG box with a Skoda fitted with essentially exactly the same DSG box?

[Cupramax]

SteBrown91 said:

kippers007 said:

Now Purchased a superb v6 3.6 3 year old, excellent car,better than i thought it would be after reading reviews.

An ex cop car,fsh inc new auto gearbox 12k miles ago,also has 4 brand new wheels and tyres,bargin i thought.

Dealer threw in a years warranty (AA) iT'S rather nippy.

So you have replaced your Skoda with a faulty DSG box with a Skoda fitted with essentially exactly the same DSG box?

I was thinking much the same, plus i never know why people are tempted by ex police cars which are likely to have been thrashed from cold and treated unsympathetically, especially as this has likely been a traffic/pursuit car with that engine.