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Engine revs without foot on accelarator

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Some answers for Gerrycan:

The rev effect is worse when pulling away warm. Temps here are hovering around zero degrees and pulling away cold is not as bad as the engine is in its cold start elevated tick over anyway and it dosnt kick the revs up as far. However once moving when cold its jerky in 1st and second gears. Warms up quickly though and at speed and up and down the box is a delight to drive

I am getting 46mpg average over the first 200 miles cold weather short trips say average of 10 miles each

2 cyl operation does not activate anywhere near take off or low speeds - its indicated clearly on dash when it happens.

Tried different engine (drive) modes, makes no difference

I pick the car up today so should have more to add to the thread later today. The Service Manager wasn't around yesterday, hopefully today he will be unless he has been warned !

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  • Author

I have just returned from the dealers, Pulmans Skoda Durham. They were very helpful and sympathetic

I discussed the issue with the Service Manager and he showed me the Technical query they sent to Skoda yesterday and the response received this morning.

The query stated that no faults were found with the engine management system but the car was auto revving on pull away. The response from Skoda was the 'Pull away Assist' will increase engine revs so the car is behaving normally.

At this point I have sympathy with the dealer as their hands are tied my the mothership. I explained how annoying this feature is and that others were due to take their cars back to their dealers for the same issue. The Service Manager stated that if Skoda received several similar technical enquiries they may do something, perhaps a software change.

On the way home I pulled over several times and tried to pull away without the engine revving. Didn't manage it, the engine just stepped up to 1800RPM as soon as the clutch was lifted. I tried adding a bit of throttle before the clutch was lifted but that had the same effect, revs too high. 1000 to 1200 revs would be fine, 1800 is too much

I am now going to get in Touch with Skoda and explain whats happened regarding the revs and my visit to the dealers. I am going to ask if the dealer can be authorised to make the 'Pull Away Assist' less aggressive or authorise the dealer to remove the 'Pull Away Assist' feature

For those of you out there that also find this feature annoying can I suggest you visit your dealer and ask them to send a technical query to Skoda 

17 minutes ago, BigKev2 said:

I have just returned from the dealers, Pulmans Skoda Durham. They were very helpful and sympathetic

I discussed the issue with the Service Manager and he showed me the Technical query they sent to Skoda yesterday and the response received this morning.

The query stated that no faults were found with the engine management system but the car was auto revving on pull away. The response from Skoda was the 'Pull away Assist' will increase engine revs so the car is behaving normally.

At this point I have sympathy with the dealer as their hands are tied my the mothership. I explained how annoying this feature is and that others were due to take their cars back to their dealers for the same issue. The Service Manager stated that if Skoda received several similar technical enquiries they may do something, perhaps a software change.

On the way home I pulled over several times and tried to pull away without the engine revving. Didn't manage it, the engine just stepped up to 1800RPM as soon as the clutch was lifted. I tried adding a bit of throttle before the clutch was lifted but that had the same effect, revs too high. 1000 to 1200 revs would be fine, 1800 is too much

I am now going to get in Touch with Skoda and explain whats happened regarding the revs and my visit to the dealers. I am going to ask if the dealer can be authorised to make the 'Pull Away Assist' less aggressive or authorise the dealer to remove the 'Pull Away Assist' feature

For those of you out there that also find this feature annoying can I suggest you visit your dealer and ask them to send a technical query to Skoda 

Interesting, the only reference I can find on the Skoda website to Pull Away Assist is:

Pull Away Assist warns of approaching vehicles when reversing out of a parking space. 

There's no mention of increasing the revs to 2000 when the clutch is released.

I've attached a quick video to show what this problem is.

MOV_0250.mp4

22 hours ago, themanwithnoaim said:

Autos/DSG are the way forward

+1

Will be good business for Skoda when everyone is bringing their cars in for clutch replacements due to premature wear.

  • Author

I have e mailed Skoda Customer Service outlining my issues with the revs and recent visit to the dealer.

I have asked if they can advise the dealer to 'tone down' the auto rev feature or remove it altogether. They have auto replied to say they will be in touch

I have been driving around a lot today and at every opportunity I have tried to make the engine rev up on its own. I found that on a flat road you cane gently release the clutch in 1st gear and pull away without using the throttle, but I was unable to get the surge in revs that we are talking about. That is until I reached home. To get into my drive I have to creep along in 1st gear, first on full right lock and then quickly change to full left lock. As I turned to full left lock the engine surged up to 2000 rpm. I was able to put the clutch completely down and take my right foot completely of the gas and the engine continued for a short time to keep the revs. up. I think the angle of the steering has something to do with the revs rise.

  • Author

That is the annoying bit - its not predictable. Mostly its 1800 revs for me and then its OK, then its back to 1800 the next time. I approach my drive and when I engage first gear and start to crawl it shoots up to 1800. I would be surprised if the steering has an input buy hey who knows - who would think we needed assistance with pulling away !

On ‎06‎.‎02‎.‎2018 at 16:54, millerhouse said:

I've got a 2 litre diesel and this also happens in my car - lift my foot off & it just keeps going. Not something I can't remember happening in the Citroen I had until recently. Also with Silbury so I'll be interested in their reply.

John M

 

I'm pretty sure every modern car has the same feature & can be driven without even touching the accelerator pedal.

It is marketted as Anti-stall, drive-away assist, idle-drive etc etc

It is especially nice on a diesel with lots of low down torque, it can drive itself up a hill with extreme gradient just using the idle controller.

Its not as good on small naturally aspirated petrol engines as the dont have any torque or power at 800rpm but should be fine on modern TSI engines.

  • Author

Gabbo - agree with you. For many years eng mangt systems have been able to maintain a steady idle when engine is load is varied and foot is off the gas. When I towed a caravan this feature was great in traffic as it allowed me to crawl in first gear without stop start and subsequent clutch wear with caravan on. As you say I could drag the caravan up an incline with both feet off the pedals, the car just fed in more fuel to maintain the idle speed 

The auto kick in of revs on clutch release we now have is something different - annoying and not required. 

4 hours ago, Gabbo said:

 

I'm pretty sure every modern car has the same feature & can be driven without even touching the accelerator pedal.

It is marketted as Anti-stall, drive-away assist, idle-drive etc etc

It is especially nice on a diesel with lots of low down torque, it can drive itself up a hill with extreme gradient just using the idle controller.

Its not as good on small naturally aspirated petrol engines as the dont have any torque or power at 800rpm but should be fine on modern TSI engines.

As I said, can't remember having the problem with my 2013 Citroen C5 - I would much prefer that the accelerator is under my control rather than some programmer who thinks nobody knows how to drive. I think it's actually a very dangerous feature, especially if you're not expecting it.

John M

4 hours ago, BigKev2 said:

That is the annoying bit - its not predictable. Mostly its 1800 revs for me and then its OK, then its back to 1800 the next time. I approach my drive and when I engage first gear and start to crawl it shoots up to 1800. I would be surprised if the steering has an input buy hey who knows - who would think we needed assistance with pulling away !

Here's a different view from others. I had a VRS 230 DSG, which did exactly the same, but intermittently. Silbury Skoda put their computer on it, but no fault found. I put up with this for a couple of months, and then after a journey, and returning home, there was a horrendous smell of burning oil. I gently lifted the bonnet, and there was oil all over the engine bay . I called the Skoda breakdown, and straight away he saw that the oil filler cap had blown off ( Fortunately, he found it in the engine bay) Anyway, whilst chatting, I explained my over revving problem, and he said Skoda have a known fault of the oil filler cap not fitting securely, and this would have caused the problem. He topped the oil up, re fitted the oil cap, ensuring it was firmly closed, and hey presto, no more over revving !!

^^^^ Have heard of that before.

Surely it could not be that simple (fingers crossed for the new owners).

There would be some deservedly red faces at Skoda UK if true.

11 hours ago, auditek said:

Here's a different view from others. I had a VRS 230 DSG, which did exactly the same, but intermittently. Silbury Skoda put their computer on it, but no fault found. I put up with this for a couple of months, and then after a journey, and returning home, there was a horrendous smell of burning oil. I gently lifted the bonnet, and there was oil all over the engine bay . I called the Skoda breakdown, and straight away he saw that the oil filler cap had blown off ( Fortunately, he found it in the engine bay) Anyway, whilst chatting, I explained my over revving problem, and he said Skoda have a known fault of the oil filler cap not fitting securely, and this would have caused the problem. He topped the oil up, re fitted the oil cap, ensuring it was firmly closed, and hey presto, no more over revving !!

Nope, it doesn't make any difference! 

Edited by DaveLees

In the 1.5 if you raise the clutch off the floor but stop before the bite point, does the engine rev to 1800rpm or just 1000rpm?

  • Author

Gabbo - When the clutch is raised from the floor the revs rise to 1800RPM before bite point. So in first gear with handbrake off you can watch the revs go from 800 to 1800 as you lift clutch and car does not move. Depress the clutch back to the floor and revs go back to 800. When doing a straight pull away say from traffic lights you have to lift the clutch faster than you would normally to  get to bite and beyond in an attempt to limit the high revs. Slowly creeping or reversing into a space where its not a straightforward lift is another matter - rev city.

10 minutes ago, BigKev2 said:

Gabbo - When the clutch is raised from the floor the revs rise to 1800RPM before bite point. So in first gear with handbrake off you can watch the revs go from 800 to 1800 as you lift clutch and car does not move. Depress the clutch back to the floor and revs go back to 800. When doing a straight pull away say from traffic lights you have to lift the clutch faster than you would normally to  get to bite and beyond in an attempt to limit the high revs. Slowly creeping or reversing into a space where its not a straightforward lift is another matter - rev city.

 

This is definately the anti-stall/pull-away assist  feature then.

1000rpm works very nicely, you don't really notice the increase but it makes it easy for low speed manouvering.

1800rpm just seems bizarre, theres got to be a calibration mistake or configuration problem which they can fix.

21 minutes ago, Gabbo said:

1800rpm just seems bizarre, theres got to be a calibration mistake or configuration problem which they can fix.

...but only if/when Skoda admit it shouldn't rev that high on the 1.5TSI, which so far they seem to have been unwilling to admit.

Edited by SWBoy

Oil cap and oil in correct situ, so it's not that. Just pulled into the drive at home, full left lock then full right lock, very slow speed and no mad rev up from the engine. Previously, this manoeuvre always caused the revs but not today. I am taking the car back to Silbury tomorrow morning to demonstrate the problem. Now I am not sure I can make my point.

Hi

I wrote about four months ago, we had a new 1.5 act octavia, which was actually sticking on 2000 rpm.  At first we thought it was our imagination, but after experiencing it several times, including once with the breakdown service - it turned out there was a fault code and a faulty part (sorry i don,t remember the part name).  Because we only had 100 miles on clock, we rejected car, and had it replaced.

 

Replacement  car has been ok, except the annoying revs to 'prevent stalling', as mentioned here.   UNTIL. . . 

 

The recent cold weather, the car has become very jumpy as mentioned by one of the other forum members.  As if the car is 'choking' and quite literally jumps along the road for the first few minutes, then drives smoothly.

 

Needless to say, we are now doubting our decision to stay with Skoda.. . .  And the car is going back to dealer next week to be investigated.  again.

  • Author

My 2 week old 1,5 TSI ACT does exactly the same as SALP. Chugs and faulters when cold until the temp gauge starts to move. and of course the infuriating jumping revs when the clutch is lifted. I truly HATE pulling away anytime in this car and the cold chugging , arrggg.. Its my 5th Octavia by the way !. As posted already the dealer has had a look - they all do that sir. I am waiting for a reply from Skoda UK. I wont let this drop.

Putting aside the 'anti-stall' feature, there must be an underlying problem with this engine/build.  The dealer had a second car with the same fault as our first car. 

 

We had a similar type of engine (cylinder on demand) in an Audi a3, and it was a dream, very smooth, good fuel economy.  We needed a bigger car, and liked the octavia, and wanted the  1.5 act, as it is very similar type engine.  But it's proving to be a challenge :-)

 

Will let you know how it goes with the dealer late next week. 

I'm following this with interest as I had an email today saying my 1.5 Octavia is now built.  I'm wishing I had gone for DSG already... Does anyone have the 1.5 manual where these issues haven't arisen?  It would be interesting to know if it's a recent development (of course appreciating how new the engine is as well).

13 hours ago, Gerrycan said:

^^^^ Have heard of that before.

Surely it could not be that simple (fingers crossed for the new owners).

There would be some deservedly red faces at Skoda UK if true.

It was for mine :-)

I experienced this on a short test drive when I returned and reversing into a parking bay. Salesman said he never noticed it before and didn't know why it did it. I think it revved to around 1500 rpm.

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