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1.6CR Tdi judder/misfire

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Bought a Monte Carlo 1.6 TDi in October (42k miles) . Since then warranty has replaced both the exhaust gas temperature sensors pre and post dpf due to the dash giving me the disco coil light. But throughout all of this I have a judder / misfire at specific points in the rev range 

1350-1500rpm in 4th gear at 40mph

1350 - 1500rpm in 5th gear at 50mph

Driving at constant 40 or 50 is a nightmare. 

Garage claims that the diagnostic says nothing is wrong and they don't know what is wrong. Owner of the garage drove the car himself and acknowledged something wasn't right but the service depart have said as it does it when driving they can't diagnose it or fix and I'll have to live with it. The mechanics didn't even drive the car to feel it for themselves. 

PS I've had the wheels all checked etc and the clutch is fine. 

 

Welcome. 

 

So has this car had 'The Fix' to upload new engine management and fit a Flow Regulator before you bought it?

If from a VW Group Dealership it will have had.

 

So you do not just have the Warranty,

you have the VW Group Trust Building Measure 24 month Guarantee started from when The Fix was done.

http://briskoda.net/forums/topic/435229-ea-189-nox-emissions-recall 

 

?

Have they told you about this?

 

The Dealership will have to start trying harder to get to the bottom of the issue if it is an issue brought on by The Fix, which likely it is.

Edited by AwaoffSki

  • Author
7 minutes ago, AwaoffSki said:

Welcome. 

 

So has this car had 'The Fix' to upload new engine management and fit a Flow Regulator before you bought it?

If from a VW Group Dealership it will have had.

 

So you do not just have the Warranty,

you have the VW Group Trust Building Measure 24 month Guarantee started from when The Fix was done.

http://briskoda.net/forums/topic/435229-ea-189-nox-emissions-recall 

 

?

Have they told you about this?

 

The Dealership will have to start trying harder to get to the bottom of the issue if it is an issue brought on by The Fix, which likely it is.

According to the website you put you details into mine has not had the update 

Did it come from a Skoda Dealership, if so it will have had.

 

Ask 

http://skoda.co.uk/about-us/contact-us 

 

Or look for the Service Campaign sticker in the Spare Tyre well beside the cars Build Sticker.

  • Author
19 minutes ago, AwaoffSki said:

Did it come from a Skoda Dealership, if so it will have had.

 

Ask 

http://skoda.co.uk/about-us/contact-us 

 

Or look for the Service Campaign sticker in the Spare Tyre well beside the cars Build Sticker.

It came from an independent. And has not had the update. 

I take it then the Independents technician diagnosing for the warranty work.

They will need to get someone with the gear and an idea in then.

 

  • Author
6 minutes ago, AwaoffSki said:

I take it then the Independents technician diagnosing for the warranty work.

They will need to get someone with the gear and an idea in then.

 

 

There is no skoda dealer where live. The garage has all the vw audi skoda kit needed. They have been long established and are renowned for being the best independent specialist in our area. They have just failed Me this time. As you can't diagnose a car with a computer all the time. 

Edited by Jaymz1176

My dad and a friend of mine both with 1.6 tdi ( Polo and golf ) had similar symptoms, turned out to be one of the fuel injectors. Does it judder at the same rev range in idle ?

  • Author
9 hours ago, Filipelol said:

My dad and a friend of mine both with 1.6 tdi ( Polo and golf ) had similar symptoms, turned out to be one of the fuel injectors. Does it judder at the same rev range in idle ?

No. It cannot be replicated at a standstill. It only happens when the car is moving. 

  • Author

 

9 hours ago, Filipelol said:

My dad and a friend of mine both with 1.6 tdi ( Polo and golf ) had similar symptoms, turned out to be one of the fuel injectors. Does it judder at the same rev range in idle ?

No. It cannot be replicated at a standstill. It only happens whilst the car is being driven 

On 28/02/2018 at 17:42, Jaymz1176 said:

 

1350-1500rpm in 4th gear at 40mph

1350 - 1500rpm in 5th gear at 50mph

Driving at constant 40 or 50 is a nightmare. 

 

 

The 1.6 CR TDi is not like an ' old school ' diesel.

 

To run efficiently the turbo needs to be giving significant boost which means running above ~1700rpm so the car must be driven more like a petrol engined one.

 

Yes the gear change indication tells to change up but the settings were never update from the 1.9 PD, just ignore them !!

 

At 40mph use 3rd, at 50mph use 4th. Only change up when the rpm will not drop below 1700rpm.

Edited by delta925

  • Author
3 minutes ago, delta925 said:

 

The 1.6 CR TDi is not like an ' old school ' diesel.

 

To run efficiently the turbo needs to be giving significant boost which means running above ~1700rpm so the car must be driven more like a petrol engined one.

 

Yes the gear change indication tells to change up but the settings were never update from the 1.9 PD, just ignore them !!

 

At 40mph use 3rd, at 50mph use 4th. Only change up when the rpm will not drop below 1700rpm.

I have read this about the engine.  But I've driven 2 other 1.6cr engines in a rapid and a fabia and they don't do it

Edited by Jaymz1176

?

Which engine do you have the 75ps or the 105ps, and what were those other cars, the same?

  • Author
10 minutes ago, AwaoffSki said:

?

Which engine do you have the 75ps or the 105ps, and what were those other cars, the same?

All three are 105bhp.i bought the engine on the strength of two friends owning them and being able to get a few miles behind the wheels of them 

You should look into rejecting the car and buying one from elsewhere as the problem has not been fixed.  You have 6mths from purchase to reject, but at this last stage the dealership can allow for depreciation due to mileage etc.

 

Edit:  fuel filter change is a solution to this common problem on this engine, causing juddering issues around 2000rpm on say a dual carriageway.

Edited by globalste

On 01/03/2018 at 21:52, delta925 said:

 

The 1.6 CR TDi is not like an ' old school ' diesel.

 

To run efficiently the turbo needs to be giving significant boost which means running above ~1700rpm so the car must be driven more like a petrol engined one.

 

Yes the gear change indication tells to change up but the settings were never update from the 1.9 PD, just ignore them !!

 

At 40mph use 3rd, at 50mph use 4th. Only change up when the rpm will not drop below 1700rpm.

 

Not challenging what you’ve said, but I’d be really interested to learn where this is written, in particular the shift light, and if it’s the same after a performance remap

2 hours ago, globalste said:

 

Not challenging what you’ve said, but I’d be really interested to learn where this is written, in particular the shift light, and if it’s the same after a performance remap

It is the same after a map. 

I had the exact same problem. juddering under load at low revs. No warning nothing. Turned out it was 1 injector. What skoda noticed a slight difference in one of the cylinders where the ECU was overcompensating with fuel. Nothing major to trigger a warning. If i revved it, drive at 20000 rpm it was absolutely fine. They swapped the injectors around, reprogrammed them and it behaved the same but in a different cylinder. the cost for that was £800. The juddering was gone instantly. I hope this helped 

  • Author
23 hours ago, Bertie90 said:

I had the exact same problem. juddering under load at low revs. No warning nothing. Turned out it was 1 injector. What skoda noticed a slight difference in one of the cylinders where the ECU was overcompensating with fuel. Nothing major to trigger a warning. If i revved it, drive at 20000 rpm it was absolutely fine. They swapped the injectors around, reprogrammed them and it behaved the same but in a different cylinder. the cost for that was £800. The juddering was gone instantly. I hope this helped 

The computer can detect zero faults across the injectors on mine 

Isn’t that what bertie said?

30 minutes ago, Jaymz1176 said:

The computer can detect zero faults across the injectors on mine 

in all honesty, if there's an issue with the car, and the mechanic can't work it out then I would suggest to change the garage. The garage either knows about the issue and doesn't want to deal with it or they just don't know how to do it

Agreed.  I would reject the car as the problem isn’t resolved and have a refund allowing for time and mileage.

On 01/03/2018 at 21:52, delta925 said:

 

The 1.6 CR TDi is not like an ' old school ' diesel.

 

To run efficiently the turbo needs to be giving significant boost which means running above ~1700rpm so the car must be driven more like a petrol engined one.

 

Yes the gear change indication tells to change up but the settings were never update from the 1.9 PD, just ignore them !!

 

At 40mph use 3rd, at 50mph use 4th. Only change up when the rpm will not drop below 1700rpm.

 

On 03/03/2018 at 09:24, globalste said:

 

Not challenging what you’ve said, but I’d be really interested to learn where this is written, in particular the shift light, and if it’s the same after a performance remap

 

Ever since the 1.6 CR TDi replaced the 1.9 PD TDi this has been detailed on the Fabia 2 pages and probably those for other models.

 

It comes from experience. More so in 4th and 5th try to accelerate starting from 1500rpm or less. Initially the response if smooth is limited. Once 1700rpm or so it reached then the rate of response increases.

 

Second is fuel consultation. A member with one of the first 1.6 engines found that on a regular cross-country run where 50mph was either the limit or could generally not be exceeded by staying in 4th he consistently achieved a higher mpg.

 

Rather than ponder over this simply try it yourself. Remember too these engines need a good workout regularly, not always to be driven gently.

 

 

I have not had the VAG fix and remap and have no intention of having it. My car has not been to a VAG dealer since 3 years old and only as a last emergency resort will go to one while I own it. I am fortunate to have a local independent VAG specialist. It was bought from a one site dealer but within weeks of delivery they closed and the franchise transferred to a major chain. They hold all the VAG franchises plus Honda, Lexus, Toyota.

If bought from a franchised dealer not an independent my next car is most likely to be a Ford Focus Ecoboost as there is an excellent one site franchise dealer 10 or so miles away. The nearest is 3 miles but to be avoided as again a major group. I would have a Skoda Rapid Spaceback 1.2 TSi but not from any dealer within 25 miles then do not know at all those further away.

Edited by delta925

In my post above I missed this -

 

Third is that when running at the highest efficiency the emissions and soot production are at the minimum. The latter means longer between DPF regens and ultimately longer before the DPF must be replaced, or the car scrapped if economically not worthwhile.

 

 

The gearing is not well matched to UK speed limits. It would be better if all except perhaps 5th were lower so then e.g. ~1700rpm at 40mph in 4th. A lower first and second would be better in crawling traffic.

 

 

Yesterday I had a DPF regen start. It continued on both my journeys to / from work today. During the period from when the regen starts to when the engine gets up to a reasonable temperature it is jerky at any speed coming on / off throttle. Ideally of course the regen will be able to complete without interruption. The worst circumstance is when it comes over a weekend with numerous short runs.

Edited by delta925

I think the car needs a 6spd gearbox ideally, like the 105tsi, the ratios do feel a bit whacky sometimes.  I find my shift light tells me to shift at 2200rpm(ish) except 4th-5th, when it asks at 1700, but I’ve found myself holding the gear more since I read this post.  Skoda did an unauthorised emissions fix when it went in for a rattle (the swines) car was dreadful, got it rolled back and it’s far better again.  I monitor the car closely with VAGDPF and I use AR6400dmax every 5k and 6900 every tank, I also change the oil and filter every 6k miles, that’s about all I can do to keep it running as well as possible really.  Does mostly motorway and I get 58mpg avg tank to tank.

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