I have a fabia 3 1600 cr diesel done 2100 miles

it keep idling at 1000 revs not 800 which is a problem when taking foot of throttle as car wants to keep going

can any one help

keith

Edited 20 December, 201015 yr by topboss

it could just be the regen process of the DPF.

I have a fabia 3 1600 cr diesel done 2100 miles

it keep idling at 1000 revs not 800 which is a problem when taking foot of throttle as car wants to keep going

can any one help

keith

Hi

I've noticed in the past few VERY cold days that my wife's 1.6 CR is reluctant to settle down to an 800 r.p.m. tickover too.

Watched the oil temperature today as the engine struggled to reach 'normal operating temperature' but even when the engine had reached 90 degrees C the oil was only <80 degrees (normally anything around 100 - 105 degrees).

Only once the oil temperature was > 80 degrees did the tickover settle and even then not reliably- so my thoughts are that it is a form of compensation for the very cold ambient temperatures -8.5 degrees here this afternoon - and perfectly normal behaviour??

The 1000r.p.m. tickover associated with regeneration is in my experience accompanied by 'lumpiness' /shaking of the engine.

HTH.

Alan

I have a fabia 3 1600 cr diesel done 2100 miles

it keep idling at 1000 revs not 800 which is a problem when taking foot of throttle as car wants to keep going

can any one help

keith

I have the same problem and contacted Skoda directly for an answer (having first checked with local dealer) here is response I got:

"Most engines used in modern vehicles have an idle speed regulation feature which is designed to improve emissions, aid

driveability and prevent stalling.

With the high gear ratios sometimes utilized to improve fuel economy, it is possible that if a gear is selected which is too

high for the vehicle speed, the engine speed can drop below the set idle speed. The engine management system will intervene by

raising the idle speed to prevent stalling and can raise the RPM.

As always with a new vehicle or engine variant, slight adaptations may be required to the customers driving style to maximise

their driving experience. The customer should ensure that the correct gear is selected for the vehicle road speed and control

the vehicle as normal with the clutch and brake."

What I still fail to understand is if the car idles at 800rpm and the idle speed regulation kicks in at 750rpm why then does it not switch off until 1000rpm and the car has run away with you. Surely if it cut off at the 800rpm idle speed it wouldn't be so noticable and reduce the risk of running up the back of the car infront when your car has decided to apply throttle!!!!! Is there anything that can be done?

There are good reasons for the idle to be controlled in that way and cutting off at 800rpm would not always solve the problem. Don't forget many petrol engines do this too as do diesels. My motorcycles with electronic fuel injection do it as well. It's the modern way and as Skoda says just need us to get used to the way the vehicle behaves, like we do for other aspects of the vehicle. My guess is that most often when the idle speed raises to 1000rpm, it is the regen going on. Most engines don't shake if they have covered plenty of miles and are not still tight.

Skofabia, Welcome by the way. It's good on 'ere'. :yes:

There are good reasons for the idle to be controlled in that way and cutting off at 800rpm would not always solve the problem. Don't forget many petrol engines do this too as do diesels. My motorcycles with electronic fuel injection do it as well. It's the modern way and as Skoda says just need us to get used to the way the vehicle behaves, like we do for other aspects of the vehicle. My guess is that most often when the idle speed raises to 1000rpm, it is the regen going on. Most engines don't shake if they have covered plenty of miles and are not still tight.

Skofabia, Welcome by the way. It's good on 'ere'. :yes:

Thanks for the welcome, just joined the forum after trawling the interweb to try and find out if anybody else was experiencing this and to see if there were any words of wisdom out there. :wonder:

I have recently had my first experience of nearly running up the back of ther car in front of me in town when this feature kicked in at low revs (this isn't my primary car I bought it for the girlfriend to commute to work). It may be my driving style, but surely it can't be very good on the clutch if you have to keep engaging it to stop the car running away on you. I am having a hard job convincing the girlfriend to keep the Skoda as she can not get used to this feature, basically the car drives her rather than her drive the car. If I end up relenting and getting rid of the Fabia it will only cost me money and will put me off the brand completely, what can you recommend?

Thanks for the welcome, just joined the forum after trawling the interweb to try and find out if anybody else was experiencing this and to see if there were any words of wisdom out there. :wonder:

I have recently had my first experience of nearly running up the back of ther car in front of me in town when this feature kicked in at low revs (this isn't my primary car I bought it for the girlfriend to commute to work). It may be my driving style, but surely it can't be very good on the clutch if you have to keep engaging it to stop the car running away on you. I am having a hard job convincing the girlfriend to keep the Skoda as she can not get used to this feature, basically the car drives her rather than her drive the car. If I end up relenting and getting rid of the Fabia it will only cost me money and will put me off the brand completely, what can you recommend?

Easiest way is to get rid of the girlfriend!!

Your on a loser here my friend - once they get the idea that the car is behaving differently to their previous motor, no amount of encouragement or reasoning will convince them that there is not something wrong about the car! The bad news is that people so convinced will not try to adapt their driving (how can it possibly be me that needs to change?? - its the car that is at fault!)

As others have stated - this behaviour is quite normal (and is influenced by running and ambient temperatures) Not only is it technologically clever, but it does make good sense.

Good luck when you try to convince her that her driving style needs to change

Edited 28 January, 201214 yr by 2ndskoda

it could just be the regen process of the DPF.

Correct, the higher idle speed is the system regenerating.

Easiest way is to get rid of the girlfriend!!

Your on a loser here my friend - once they get the idea that the car is behaving differently to their previous motor, no amount of encouragement or reasoning will convince them that there is not something wrong about the car! The bad news is that people so convinced will not try to adapt their driving (how can it possibly be me that needs to change?? - its the car that is at fault!)

As others have stated - this behaviour is quite normal (and is influenced by running and ambient temperatures) Not only is it technologically clever, but it does make good sense.

Good luck when you try to convince her that her driving style needs to change

Tell me about it. She is convinced that the car shouldn't do that (and to a point I agree with her), none of my other cars (or the last one she drove, a Peugeot 307 TDi) do the same. I don't think it would be so much of a problem if it was only a few rpm swing but the 250rpm rev change can catch you out especially on snowy or icy roads when you are trying to keep the revs low to maintain good traction

Correct, the higher idle speed is the system regenerating.

Is there anything that can be done to reduce the higher idle speed when regenerating to reduce the effect on the characteristics of the car at low revs?

The local dealer plugged the car into the computer and it said it was all OK, so what next?

Dont worry about it, mine does it too. Sometimes its due to a dpf regen but not always, Ill stop sometimes and it does 1000rpm then blip the throttle and it goes down to 800rpm.... its modern wizardry

Dont worry about it, mine does it too. Sometimes its due to a dpf regen but not always, Ill stop sometimes and it does 1000rpm then blip the throttle and it goes down to 800rpm.... its modern wizardry

It might be modern wizardry, but it's a pain in the r's especially when the car decides to accelerate towards the back of the car in front of you. The last thing you want to do on icy roads is to hit the brakes.

So how do you get by it?

I'd rather the car stalled when the revs got too low, then you'd learn (well the GF might) the best revs to sit at and there's no chance of the car driving into the back of the car in front.

Dont worry about it, mine does it too. Sometimes its due to a dpf regen but not always, Ill stop sometimes and it does 1000rpm then blip the throttle and it goes down to 800rpm.... its modern wizardry

Does anybody know if the VW Polo is the same? :wonder:

They all the same with DPFs, at 800RPM there is not enough heat or fuel passing through the DPF to regenerate so the ECU raises the RPM to 1K for the regeneration and more fuel is injected as well to help the process. All modern diesels with DPF do this regardless of manufacturer.

I never have an issue driving my dads Fabia with DPF when regenerating, I just use a different gear to keep the revs above 1K RPM.

They all the same with DPFs, at 800RPM there is not enough heat or fuel passing through the DPF to regenerate so the ECU raises the RPM to 1K for the regeneration and more fuel is injected as well to help the process. All modern diesels with DPF do this regardless of manufacturer.

I never have an issue driving my dads Fabia with DPF when regenerating, I just use a different gear to keep the revs above 1K RPM.

Thanks for all the info, if you can see from my messages earlier the girlfriend wants me to get rid of the Fabia "cos it doesn't do what she wants it to do and it does what it wants to do without her asking" and finds it very disconcerting. I don't want to change the car again so soon after getting it especially if all the modern diesels do the same and need to convince her to stick it out as she should get used to it or at least be able to compensate for it when it happens. You'll have to excuse my ignorance but what is the DPF? :think:

Thanks for all the info, if you can see from my messages earlier the girlfriend wants me to get rid of the Fabia "cos it doesn't do what she wants it to do and it does what it wants to do without her asking" and finds it very disconcerting. I don't want to change the car again so soon after getting it especially if all the modern diesels do the same and need to convince her to stick it out as she should get used to it or at least be able to compensate for it when it happens. You'll have to excuse my ignorance but what is the DPF? :think:

Diesel Particulate Filter. Bit like a catalytic converter to look at except it traps all the soot the average non DPF car throws out the back as black exhaust. The DPF gets slowly blocked by all this soot so has to heat the DPF up until the soot ignites and goes out the back in a small grey puff of smoke. The car does this by throwing some additional fuel out the engine after normal combustion. It all gets hot and sometimes a bit smelly if your not moving much when it does it. This is why on occasion your idle is higher so it can regenerate (burn off the soot) when your stationary.

Diesel Particulate Filter. Bit like a catalytic converter to look at except it traps all the soot the average non DPF car throws out the back as black exhaust. The DPF gets slowly blocked by all this soot so has to heat the DPF up until the soot ignites and goes out the back in a small grey puff of smoke. The car does this by throwing some additional fuel out the engine after normal combustion. It all gets hot and sometimes a bit smelly if your not moving much when it does it. This is why on occasion your idle is higher so it can regenerate (burn off the soot) when your stationary.

Thanks for the info. I'm glad I visited here today as it gives me a few answers and a couple for when they crop up like "the car smells when I'm sitting in traffic, it's broken and I don't like it" (does this sound familiar to anyone?)

I just wish the local dealer had told us about a couple of these, when we went in with "the car running away at low revs problem" they hadn't heard of it. I know now if I have any oddball questions (or what I may think are oddball questions) exactly where to come.

From the small time I have driven the car it appears to be quite good, I'm not a big fan of small cars, but this one doesn't give you that impression.

I push the clutch in to stop my mine running on when slowing to a stop or in very slow traffic.

Is it the GF's first diesel car? It is also worth mentioning that modern diesels don't like to be 'pottered' around at low speed and low revs like diesels of old. If you do, the car will always be regenerating it's DPF (too frequently). I'm wondering if your GF is a bit timid with the throttle and is not getting the revs, speed and load on the engine up for sustained periods, and the exhaust system isn't getting hot enough to burn the DPF clean in a passive way (without the engine idle increasing during slow travel). Normally if it's driven correctly over a good distances occasionally, the idle thing isn't really a problem. Does she do mainly town work?

Edited 28 January, 201214 yr by Estate Man

Is it the GF's first diesel car? It is also worth mentioning that modern diesels don't like to be 'pottered' around at low speed and low revs like diesels of old. If you do, the car will always be regenerating it's DPF (too frequently). I'm wondering if your GF is a bit timid with the throttle and is not getting the revs, speed and load on the engine up for sustained periods, and the exhaust system isn't getting hot enough to burn the DPF clean in a passive way (without the engine idle increasing during slow travel). Normally if it's driven correctly over a good distances occasionally, the idle thing isn't really a problem. Does she do mainly town work?

It isn't the first diesel car, the last one we had was a Peugeot 307 1.6 TDi 90, but it would be the first CRD. She commutes 35 miles into town on country roads and other than sitting in traffic from outskirts of town to her place of work it would get plenty throttle en-route, she isn't that scared of the car, it's just that she has lost her confidence driving in icy weather conditions. Now that I know exactly what the car is doing, why it is doing it and the best thing to do to reduce the chance of it happening, then I can explain to her and hopefully she can get used to it and re-build her confidence. All thanks to you guys on here, I have learned more than from my dealer, or the mechanic, which is worrying.

It isn't the first diesel car, the last one we had was a Peugeot 307 1.6 TDi 90, but it would be the first CRD. She commutes 35 miles into town on country roads and other than sitting in traffic from outskirts of town to her place of work it would get plenty throttle en-route, she isn't that scared of the car, it's just that she has lost her confidence driving in icy weather conditions. Now that I know exactly what the car is doing, why it is doing it and the best thing to do to reduce the chance of it happening, then I can explain to her and hopefully she can get used to it and re-build her confidence. All thanks to you guys on here, I have learned more than from my dealer, or the mechanic, which is worrying.

9 years ago I had a 307 estate 2.0 HDI diesel and after that a Citroen with the same CRD engine

I got the power surge from my old Greenline 2 and sometimes the regeneration smell. Only done just over 500 miles (40/60 town/dual carriageway) in the 1.6 Elegance and not had the power surge or smell yet and could be due to I keep the revs above 1500 rpm. you do get used to the regen surge and just automatically use the brake.

Mine did a regen 3 days ago, and since this cold spell it been idling at 1000rpm most of the time, occasionally dropping to 800rpm. It never affects it driving and has never surged. I did find a 2009 Fabia Tdi I test drove did surge a lot though.

Of all the comments made here (interesting thread) - the most relevant one to your problem is the comment made about high gearing. When your GF is slowing down - she is 'panic braking' and forcing the road speed below the engine speed (for the gear that she is in). I would think that if she gets into the habit of dropping down a gear, this would ease the situation considerably.

Good Luck

Of all the comments made here (interesting thread) - the most relevant one to your problem is the comment made about high gearing. When your GF is slowing down - she is 'panic braking' and forcing the road speed below the engine speed (for the gear that she is in). I would think that if she gets into the habit of dropping down a gear, this would ease the situation considerably.

Good Luck

I spoke to her yesterday after my discussions on here and explained what was happening and she seems a bit more at ease with it, her biggest fear is that during icy road conditions she will end up doing the wrong thing as the car isn't reacting the same as the old Peugeot used to. For example when driving along the road, she sees the car in front slow down, she would take her foot off the accelerator and let the car slow down naturally without having to apply the brake, the Peugeot could go down to about 600-700 rpm without stalling, however with the Skoda as soon at it reaches 750 rpm it applies throttle (either to clear out the DPF or to avoid stalling) and accelerates up to 1000 rpm forcing her to brake and increase the risk of skidding into the car in front. Now that she knows to keep the revs a bit higher and just change down hopefully she will get used to driving in this manner and regain her confidence driving in adverse weather conditions.