TFSI 140 COD: vibrations in 2-cyl mode

cuke2u · Nov 30, 2014

ECU's are not capable of learning individual driving styles, however they will adapt certain settings in response to the information received from sensors. It simply isn't clever enough to adapt in the real sense of the word.
However to be on topic, it's quite interesting that only a few owners seem to be noticing a vibration. Quite strange why this should be so.

Diamond White · Nov 30, 2014

I know this is a stupid question, but I'll ask it anyway. Is there any way of turning the CoD off. Maybe a remap or something?

dkpeter · Nov 30, 2014

LuisM said:
I'm glad to hear that, dkpeter! However, take into account that the ECU memory may have been rebooted in the updating process. I hear that the ECU learns your driving style and adapts some parameters, so it might be that the engine behaviour changes as days pass. Anyway, the fact that you didn't have vibrations on the trip back is good news. Please inform in a few days how it's going. I really appreciate your information. Thanks for all the reporting so far!

Also, in a previous post you said the vibrations are (were) more pronounced just before the system decides to go from activation of 2-cyl mode to deactivation (the same happens to me). Now that you don't have the vibrations, is it because the engine is not in 2-cyl mode in those situations when it used to be in 2-cyl in the past? Or is it still in 2-cyl but just doesn't vibrate? Have you noticed any change in the 2-cyl / 4-cyl activation pattern?

After doing almost 500km in the last two days I can say that the software update hasn't made my engine totally vibration free. I can still feed the CoD enabling/disabling but it is not annoying any more.
So the software update has helped. Wether or not the adaption to my driving still will change its behavior only time can tell. I don't think that the update made the engine active the CoD less.
The update installed is TPI 2037323/1, the number was written on the invoice I received from Audi by mail a few days ago.

LuisM · Dec 1, 2014

Thanks again for the information, and for the TPI number.

Which model-year is your car? That is, when did you buy it?

dkpeter · Dec 1, 2014

LuisM said:
Thanks again for the information, and for the TPI number.

Which model-year is your car? That is, when did you buy it?

I took delivery of the car 9. august 2013 and placed the order in late may, it is a 2014 model.

LuisM · Dec 1, 2014

That's interesting (for me). I also have a MY2014.

I have to take the car next February for a GPS-nav update (currently there is a problem with the maps I have). I'll ask them about this update, if they don't contact me first

Mike Højmark · Dec 16, 2014

Hi all, my name is Mike and im from Denmark.
Sorry, i dont own an Audi - but have similar problems with my Golf7 1.4 TSI ACT manual gear from May 2014.
In addition to the vibrations i also have ACT activations between gearshifts (can see 2-cylinder mode blink) and gearshifts where ACT continues active.., see my video for this error here - see shift to 3. Gear after reducing speed - then increase speed in 3. and shift to 4. and acceleration - all time with ACT active. Only when shift to 5. gear ACT deactive.
I should be running on Audi software - but dated before October - så not according to the new TPI mentioned above.
Are people still having problems with their COD or are the issue solved?

VW Denmark say there are no problem with my car - and nobody else have issues with ACT/COD... which is def. not correct i can see in here.

Mike

LuisM · Dec 17, 2014

Apart from the link at the beginning of this post (http://www.motor-talk.de/forum/rumble-and-vibrations-golf7-tsi-140-dsg-t4733542.html?page=2 -- I see you have already posted on that forum), I have a little more information from a Spanish guy I know (well, not personally). He has a Golf VII 1.4 TSI ACT. He tells me he took the car to VW for the winter check/tune-up, and after that the vibrations are smaller. VW didn't tell him they updated the ECU software or anything, but he says they sometimes do some update and won't tell you about it.

Have you contacted VW recently? Maybe when you took the car to them the update didn't exist yet. Perhaps you should go and tell them about TPI 2036911/1 (as reported in http://www.motor-talk.de/forum/rumble-and-vibrations-golf7-tsi-140-dsg-t4733542.html?page=2)

Mike Højmark said:
Hi all, my name is Mike and im from Denmark.
Sorry, i dont own an Audi - but have similar problems with my Golf7 1.4 TSI ACT manual gear from May 2014.
In addition to the vibrations i also have ACT activations between gearshifts (can see 2-cylinder mode blink) and gearshifts where ACT continues active.., see my video for this error here - see shift to 3. Gear after reducing speed - then increase speed in 3. and shift to 4. and acceleration - all time with ACT active. Only when shift to 5. gear ACT deactive.
I should be running on Audi software - but dated before October - så not according to the new TPI mentioned above.
Are people still having problems with their COD or are the issue solved?

VW Denmark say there are no problem with my car - and nobody else have issues with ACT/COD... which is def. not correct i can see in here.

Mike

Mike Højmark · Dec 17, 2014

Thanks LuisM -
my car was at the dealer 2 times.
- 01.09.14 they update software (my guess it was TPI 2036911/1 (they mention that it was Audi developed software).
- then 20.10.14 i give them the car again - as the software update didn't change much - only increased the rpm where shift indicator suggest next gear. They reply after having my car for 3 days - that it works as designed and there are no engine errors registered... I could tell them the same thing...
I then asked them if they disagreed about the ACT activation between gearshift. They saw this on a testdrive with me. They said that this couldn't be fixed at the moment... so - im left with "broken" product.

But I see another TPI - no. 2037323/1 (the one dkpeter use above). This look like released end November14. So I think I should ask them (vw DK) for this TPI.

cuke2u · Dec 17, 2014

Why do you call it broken, your car still works and it isn't about to breakdown and is fit for its purpose..

Mike Højmark · Dec 17, 2014

Ok - broken is perhaps not the right word. But driving the car is differently not something I would call enjoyable. As mentioned earlier - vibrations feel like wheels are unbalanced. But as soon at engine run on 4 cylinder it all goes away. So ACT/COD is defiantly not working as it supposed to - and factory must have admitted to agree - otherwise they would not submit TPI's.

cuke2u · Dec 17, 2014

Is it really that bad, if so there is something definitely wrong with your car as the only vibrations through the steering wheel on mine is from the road imperfections when driving normally. You don't get any rattling noises when you first start the car up from cold do you? I did from mine and they diagnosed a faulty dual mass flywheel and since that's been replaced I haven't experienced it, but my fingers are crossed still...

Mike Højmark · Dec 18, 2014

I do think something is wrong.. no doubt. I have tested identical Golf7 with ACT and manuel gear - and ACT worked perfect on this one.
But the only solution VW suggest at the moment, is software updates... which in the one incident they have updated on my car - only increased the rpm level for gearshift indicator (this is what I have noticed). I do think that its a mechanical or electronic problem - one person on a Danish forum for VAG cars suggest changing the sensor on top of the block (they monitor and control when ACT/COD shall be active or not - so control the camshaft movement). VW Denmark denies to change any parts on the car.
The are no strange noise at start-up - only the normal TSI valve noise (you know - tic-tic)
Luckily im a member of at large car-organisation here in Denmark - they have lawyers that can help members in case they agree something is wrong. But by law, I have to give VW opportunity to solve the issue first. I have already written to the dealer again (as TPI 2037323/1 looks newer than the change in software already made in my car).
I have also paid extra 2 year warranty for the car - but if VW say nothing is wrong - its worth nothing.... :unhappy:

cuke2u · Dec 18, 2014

Hi, have you a also access to the VW customer service phone number like we have here https://www.audi.co.uk/about-audi/contact-us/contact-details.html sometimes contacting them will help. On replacing parts, the noise might coincide with the change to 2 cly and back, but that doesn't mean it actually is this but something else mechanical that is reacting to the changes. Yes I know the noise that the high pressure injectors make, so much for quiter engines, but at least mine is dead quiet from inside the car once it has warmed up. My noise was very apparent and came from the footwell area of the bulkhead.

Mike Højmark · Dec 18, 2014

No - you can only call the service assistant at individual dealers here in Denmark. But I do have a contact to the Service responsible/manager at my dealer. He handles claims - which I've had a few of (but all solved apart for the ACT/COD). I have already send him a mail to check the TPI 2037323/1.
My car doesn't have issues with strange noises - its the vibrations on 2-cylinder mode that are the problem + 2 types of situations where 2-cylinder are activated, when it shouldn't be. (1 is shown in the video above - other is between gearshift, where I can see in display that 2-cylinder mode "blink" - which result in uneven start in new gear... both of these 2 types happens only 1-2 times in a 10 miles drive).

cuke2u · Dec 18, 2014

Right, I understand now, then maybe changing the sensor might be prudent to see if it anything happens. I am surprised, seeing as your dealership doesn't seem to understand what to do, they at least haven't tried it...

Mike Højmark · Dec 18, 2014

Yes - I agree.
But I do think the dealer just act on how they are advised to by VW Denmark and factory in Germany... and that is as others in here are saying. "Your vibration is normal for 2 cylinder mode - there is nothing wrong". But most of us have had test-drives in other identical cars which didn't have the vibrations. So something is different in our cars compared to the ones that are working fine. I'll let my dealer try one more time - then the lawyers at my car organisation (called FDM - like ADAC in germany) must take over.

cuke2u · Dec 18, 2014

If I was faced with a similar situation in my field of work I'd take a punt on it being some component or other, after all that's what my dealership has done with the dmf on my car. Perhaps I was trained in the old fashioned way of repairing cars before there was computer technology to read fault codes, when you're not sure about what's causing the issue a process of elimination commences. After all they are employed to fix it not engage in a dialogue of what isn't causing the fault.

Mike Højmark · Dec 19, 2014

Great - now I get info from my dealer that they can't locate TPI 2037323/1 - and they now say they can't use an Audi TPI on a VW.... so again - no help...

cuke2u · Dec 19, 2014

I think that either the ECU's are different or the programming will be...

Mike Højmark · Dec 19, 2014

But why tell me that they, put Audi software in my car in first place then... someone is telling me bulls... and I have to live with an engine that vibrate because of ACT/COD.

cuke2u · Dec 19, 2014

Can't help with that, perhaps they were just trying to keep you happy..

Mike Højmark · Jan 15, 2015

Ok - company that import VW, Skoda, Seat and Audi here in Denmark contacted me today - after I'd send my complains to them.
They say its normal that COD/ACT continue active between gearshift.
Have any of you experienced this?
See my video-link earlier in here – to see what I mean. I only experience this a couple of times a week – but its most irritating as engine run very rough doing this. I was of the opinion that this was something special on my care - as I've never heard about this from anyone else...

cuke2u · Jan 15, 2015

I can't actually tell what I am meant to be getting from that video....

Mike Højmark · Jan 15, 2015

It show 2-cylinder mode active going from 3. gear - to 4. gear - accelerating thru 4. and changing to 5. gear.. before 4-cylinder mode gets active again.
Yes - I know its shaky - sorry.
Normally I get 4-cylinder mode every time I put down clutch... but this doesn't happen in the video.

cuke2u · Jan 15, 2015

Thanks for pointing it out and I will see if my car replicates it....

cuke2u · Jan 16, 2015

Only I can't remember how to get that to display...

Mike Højmark · Jan 16, 2015

Well - I dont know the display in Audi. Sorry.
Mine show up in average miles... + no matter where I am in the computer - a small round display in the bottom right corner with "Eco" sign.

cuke2u · Jan 16, 2015

Yes I think it is in the average mpg view somewhere, I didn't have enough time to look today, I should be able too this weekend...

LuisM · Jan 16, 2015

cuke2u said:
Yes I think it is in the average mpg view somewhere, I didn't have enough time to look today, I should be able too this weekend...

If I recall correctly, the 2-cyl indication appears in the instantaneous mpg display. It simply replaces the mpg value when 2-cyl mode is entered.

cuke2u · Jan 17, 2015

OK I will take a look...

cuke2u · Jan 19, 2015

I can't say I am seeing the same behaviour with my car as with yours Mike...

LuisM · Feb 11, 2015

Now that two months have passed, can you confirm that the vibrations have been reduced with the software update? What are your impressions, dkpeter?

dkpeter said:
After doing almost 500km in the last two days I can say that the software update hasn't made my engine totally vibration free. I can still feed the CoD enabling/disabling but it is not annoying any more.
So the software update has helped. Wether or not the adaption to my driving still will change its behavior only time can tell. I don't think that the update made the engine active the CoD less.
The update installed is TPI 2037323/1, the number was written on the invoice I received from Audi by mail a few days ago.

LarsR · Feb 12, 2015

Hi
Had I only seen this blog before I accepted the order of my Audi A3 1.4 TFSI COD 150 HK.
The car is brand new, one month old and it has vibrations like the wheels are out of balance. The vibrations comes in all the gears at different rpm's. The vibration is felt in the car, the seat and in the steering wheel. Audi says all the COD cars has this vibration, I tried a reference car and Audi is correct that car had the same vibrations.
Can it really be, that the COD can not be deactivated?

glospete · Feb 12, 2015

Well I can only speak as I find and my 1.4 COD car does not have these vibrations - it is the smoothest engine and gearbox that I've ever had.

koder · Feb 12, 2015

I must concur with Pete, absolutely no vibrations here and it's the smoothest engine/gearbox I've had the pleasure to drive. I also did not notice any vibrations in the 2 different demo cars (saloon and SB).

cuke2u · Feb 12, 2015

LarsR said:
Hi
Had I only seen this blog before I accepted the order of my Audi A3 1.4 TFSI COD 150 HK.
The car is brand new, one month old and it has vibrations like the wheels are out of balance. The vibrations comes in all the gears at different rpm's. The vibration is felt in the car, the seat and in the steering wheel. Audi says all the COD cars has this vibration, I tried a reference car and Audi is correct that car had the same vibrations.
Can it really be, that the COD can not be deactivated?

No the COD cannot be deactivated, I would suggest if your car is vibrating that badly it isn't anything to do with the COD.

mfspen · Feb 12, 2015

LarsR said:
Audi says all the COD cars has this vibration, I tried a reference car and Audi is correct that car had the same vibrations.

As others have said, it must be something else.
My Golf GT has the same engine, and there is absolutely no vibration of any kind. The switching between 2 and 4 cyl mode is completely imperceptible. Were it not for the display message, you wouldn't know it had switched.

cuke2u · Feb 12, 2015

Could be the DMF if the vibrations are that bad, mine started to fail after 4k miles, however I was noticing it at start up before it got that worse.

LarsR · Feb 12, 2015

Thx. for the replies.
I forgot to say that the vibrations was in Audi A3 1.4 TFSI COD 150 HK cars with manual gear boxes.

TFSI 140 COD: vibrations in 2-cyl mode

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