They are all ACT, not all have problems.

Maybe VW / Bosch is the problem. 

 

New Hybrids have the 1.4TSI, the 1.4TSI without ACT,

says it all really,  KISS and then add complexity...   Get the WLTP / RDE and soon RDE2.

The 2.0 TSI does not have ACT as far as I know. It has variable valve timing with the Budack cycle used at low load. Works a charm and no dodgy marsupials. 

Edited 2 October, 20196 yr by TDIum

I wonder if a chip tuning will kill a kangaroo?

Who has any thoughts on this?

4 minutes ago, kifir said:

I wonder if a chip tuning will kill a kangaroo?

Who has any thoughts on this?

I don't know much about chip tuning or cars in general but as I just talked to the Skoda dealer today about a smaller kangaroo having returned, the person explained that to speed up the warm up phase of the engine, it follows a different control program until warm enough where less fuel is injected which means it's being starved. At first it seemed counter-intuitive to me that less fuel meant faster warm up but higher amounts of fuel apparently cools the engine. This explains why it's less of an issue once it's warm. Maybe this is common knowledge but it was new to me and makes sense. 

 

If chip tuning can avoid starving the engine when in the lower gears at the cost of slightly slower warm up, then i suppose it can help

Remapping might well work but someone that owns a car might well want VW to pay to sort their coc-k up first, and not void a warranty on cars that might kill clutches or have other issues.   Then those renting cars can not void a warranty on other peoples property without the risk of footing bills if their were failures. 

On 02/10/2019 at 08:15, TDIum said:

Is the 1.5 problem coming from the ACT thing? 

 

Anyone? 

1 minute ago, TDIum said:

 

Anyone? 

I don't think so. When the kangarooing occurs for me the 2-cylinder symbol is not shown at least. My best guess is that they had to lower fuel injection too much to reach the WLTP requirements for the emission category they wanted the car to stay in. Such emission categories are certain intervals so other engines might have an easier time staying without their category and didn't have to be almost starved of fuel. 

@Poul

It is not known how the kangaroo is associated with engine warming up.

On my car, jerking is always with a cold and with a hot engine.

Most likely the issue is emissions.

@TDIum

Vehicles like the 1.5 TSI /TFSI with ACT  / COD are not driving off in 1st and into 2nd with 2 Cylinders deactivated.

 

Taking up drive around tickover speed on all of my cars I have owned is not the smoothest ride. I have had to relearn driving techniques with a turbo engine. The most dangerous is the lack or no pick up speed under the turbo take up of 1500 revs. For example, approaching a roundabout or junction in second gear with the engine under 1500 rpm a heavy right foot then suffocates the engine with no acceleration. I have been caught out many times with me praying for the turbo to kick in to get me out of trouble. In such circumstances I now drop into 1st gear for assured acceleration.

14 minutes ago, kifir said:

@Poul

It is not known how the kangaroo is associated with engine warming up.

On my car, jerking is always with a cold and with a hot engine.

Most likely the issue is emissions.

That is true, the jerking when downshifting and having a warm engine isn't explained by my suggestion. Either there is more than one reason or I'm a bit off about the real cause.

 

1 minute ago, edbostan said:

Taking up drive around tickover speed on all of my cars I have owned is not the smoothest ride. I have had to relearn driving techniques with a turbo engine. The most dangerous is the lack or no pick up speed under the turbo take up of 1500 revs. For example, approaching a roundabout or junction in second gear with the engine under 1500 rpm a heavy right foot then suffocates the engine with no acceleration. I have been caught out many times with me praying for the turbo to kick in to get me out of trouble. In such circumstances I now drop into 1st gear for assured acceleration.

I have experienced no acceleration twice i think. Once before the latest update and once after. When that happened we are talking about 5 seconds of no power at all, not just slow acceleration. Is that also what you have experienced when the engines suffocates at low rpms?

Yep, no acceleration. It eventually returns when the engine finds enough puff to reach the turbo take up and then I am past the danger. It is very disconcerting at times. When I drove the demonstration model the same occurred so I took it as a characteristic of the 1.2 tsi engine and I have learned to live with it for the past 6 years. I have the chain tsi engine and during ownership I have had no updates or software updates as far as I know.

The actual 'characteristics' of some 1.2 or any engine has nothing to do with a 1.5 TSI EVO that has a fault and behaves dangerously and VW tried using the 'It is a characteristic'.

 

It is a fault in the Engine Management' that they are trying to get a fix for without needing to have vehicles not conform as they did to get the WLTP Certification, 

Just incase a vehicle with a fix was put through a WLTP retest.

 

Plenty 1.5TSI EVO manual or DSG behave perfectly well, hence not all need a 'Fix'.

 

Then the issue with these engines and 'DQ200's loss of drive is something else they are needing to resolve and many that have had this are not 'fixed' yet.

Edited 3 October, 20196 yr by Roottootemoot

8 minutes ago, edbostan said:

Yep, no acceleration. It eventually returns when the engine finds enough puff to reach the turbo take up and then I am past the danger. It is very disconcerting at times. When I drove the demonstration model the same occurred so I took it as a characteristic of the 1.2 tsi engine and I have learned to live with it for the past 6 years. I have the chain tsi engine and during ownership I have had no updates or software updates as far as I know.

The comment about the update was more for other people having a 1.5.

 

A bit scary that an engine can have no response for that long without it being called an safety issue. 

Re the 1.2 TSI's since late 2011

and after the Timing Chain upgrade which is covered by the TPI.

There was the Turbo Shim and Turbo actuator 'Characteristics' which eventually were Faults that got a TPI covering the Actions required to deal with the faults. and there was a Software Update, maybe more than one.

Also on some 2013-2015 1.2TSI there is the latest Recall Action, and on some 1.6MPI's. Started since August 2018.

 

sadly in the Skoda Secret Service / VW Secret Service Campaign set up things are often on a 'need to know' basis and that does not include car owners / customer and sometimes not even Dealer Employees, sometimes these just dont want to know, & can not be bothered finding out.

@Roottootemoot what is the end result?  problems have been resolved ?!

Not for all no.

As in the Karoq & Octavia sections.

Different updates for different vehicles and there is the threads  / post from those reporting if successful or not.

Crappy pattern 😞

It seems to me that they will no longer do anything. And these thoughts are killing me, a year has passed, and I am morally completely destroyed ...

Is it a Recall or a Recall Action /Service Campaign, are you getting a letter recalling the car?

Interesting to read about the recall notification, my car is slightly older than that, first registered in March this year. However, after being in at the dealers last week for the so called "fix" it did indeed completely die yesterday evening, just after pulling away from a car park. It took me by surprise as the engine was running, car was in third or fourth gear and then suddenly it wasn't running, I managed to glide it into a lay-by , where the engine promptly restarted when I put my foot on the clutch and brake pedals to stop the car completely. I didn't stall the car, the engine just quietly snuffed itself out, not much of a fix methinks, the only issues pre-fix were with pulling away, when the car could be a bit jerky and on a few occasions the engine did conk out but only at very low speeds, immediately after pulling away. Garage couldn't find anything when they checked the car over, think it needs a return trip back there pretty soon!

Looks like you are going to still be getting a Characteristic engine straight from the factory, and its not faulty.

@ 8 minutes 

 

 

Edited 4 October, 20196 yr by Roottootemoot

Had mine done (68 plate 1.5TSi manual) and result so far is that the kangaroo/flat spot is gone when cold, but still there when warm, though not as bad.  The fuel economy has markedly deteriorated. On journeys I was seeing low 40's, I am now seeing about 34. You would expect VW Group to be able to make an engine work properly. Then again, then don't exactly have much positive history.

Edited 6 October, 20196 yr by HotVRs

 

I picked up my new 1.5 TSI SEL Estate today and drove 75 miles home in very mixed traffic conditions .I found that it drives beautifully ...no stuttering , stalling or hesitation when pulling away from rest ...just smooth and effortless to drive. Very pleased with the car .

Told by dealer that new software in EMS fitted at factory.

Regards

NB Tried to post this in "Kangaroo" thread but system would not let me .

Good as it should be, fit for purpose without poor / dangerous behaviour, they have had 2 years to get their act together.

Remembering that not all did have Kangerooing type characteristics.

DSG or manual.