Can anyone assist please? I have an Octavia TDi 110 Elegance Hatch, earlier this year out of the blue whilst in 4th gear at about 3000rpm the car suddenly lurched (as if braking hard) then seemed to lose any acceleration, although ti still ran there was no power at all (just enough to drive on). After restarting the power came back but the fault would re-occur necessitating a restart to rectify it.

I've been back to my dealer who I cannot fault in any way whatsoever with the help they have given me but after replacing three parts (control valve, air flow meter (I think) and eventually the control unit (engine management) the problem is still there. After they replaced the control unit it seemd OK but it came back over the weekend.

I can replicate the fault in 3rd gear and 4th gear. In third it gets to between 3.5 and 4000 rpm before it goes and in 4th gear it usually happens at 3000rpm or thereabouts.

To make it more tricky to identify the cause it's intermittent, I tried to replicate it this morning on the way to work and it nothing happened.

I'm calling my dealer back this morning but wondered if any one else has experienced a similar problem and if so what was done to rectify it as in my case it is proving tricky to identify the cause of the problem.

Any help would be greatly appreciated.

Thanks

Can anyone assist please? I have an Octavia TDi 110 Elegance Hatch' date=' earlier this year out of the blue whilst in 4th gear at about 3000rpm the car suddenly lurched (as if braking hard) then seemed to lose any acceleration, although ti still ran there was no power at all (just enough to drive on). After restarting the power came back but the fault would re-occur necessitating a restart to rectify it.

I've been back to my dealer who I cannot fault in any way whatsoever with the help they have given me but after replacing three parts (control valve, air flow meter (I think) and eventually the control unit (engine management) the problem is still there. After they replaced the control unit it seemd OK but it came back over the weekend.

I can replicate the fault in 3rd gear and 4th gear. In third it gets to between 3.5 and 4000 rpm before it goes and in 4th gear it usually happens at 3000rpm or thereabouts.

To make it more tricky to identify the cause it's intermittent, I tried to replicate it this morning on the way to work and it nothing happened.

I'm calling my dealer back this morning but wondered if any one else has experienced a similar problem and if so what was done to rectify it as in my case it is proving tricky to identify the cause of the problem.

Any help would be greatly appreciated.

Thanks[/quote']

I seem to remember one member had a similar problem...can't remember who though. :(

However here's something from Honest John that may help:

Power loss on TDI 110s down to same problem as on Golf Mk IV. VAG acknowledges a fault with the ECU (038 906 018 BM) and specifies an upgraded unit (038 906 018 GQ) at

I've seen this on here before somewhere, lets have a quick search........

Here are a couple for you:

http://www.briskoda.net/forums/showthread.php?t=26300

http://www.briskoda.net/forums/showthread.php?t=21470

The first one appears to have the answer, the second is when he was reporting problems similar to yours.

If you can't be arsed to read them, the answer is "fuel filter".

HTH

Here are a couple for you:

http://www.briskoda.net/forums/showthread.php?t=26300

http://www.briskoda.net/forums/showthread.php?t=21470

The first one appears to have the answer' date=' the second is when he was reporting problems similar to yours.

If you can't be ar[b'][/b]sed to read them, the answer is "fuel filter".

HTH

Hi,

Thanks for this I did read these before I posted my problem. I don't think this problem is the same as mine, it's similar in terms of the symptoms but when mine hits the flat spot it doesn't pick up again I lose all power until I restart the engine. Thanks anyway.

Here are a couple for you:

http://www.briskoda.net/forums/showthread.php?t=26300

http://www.briskoda.net/forums/showthread.php?t=21470

The first one appears to have the answer' date=' the second is when he was reporting problems similar to yours.

If you can't be ar[b'][/b]sed to read them, the answer is "fuel filter".

HTH

Tavia,

Unfortunately i don't think the fuel filter was my problem. I have been back to the dealer since, and he has found nothing, but i have to go back again.

Bakie,

I have found that there seem to be a lot more 110 TDIs on the seat website, and the help there is brilliant. If you can't find someone who has had the problem, you will probably find someone who has heard of it.

Try http://www.seatcupra.net you may have to register to be able to perform searchs etc, but its free and easy.

Good luck.

JD

there is a small black box on the bulk head at the passenger side with about 2 or 3 vacum hoses going into it i would try changing it as i had the same problem with my previous car a tdi golf which is just the same as the octavia

i tried all the same things as your self first but did not help it is when the turbo comes in it seems to kill the power until you reset everything by turning the engine off it really anoyed me as it took me about 2months to try and find as it would not always do it.

Hope this is of help to you if you need any more details let me know .

there is a small black box on the bulk head at the passenger side with about 2 or 3 vacum hoses going into it i would try changing it as i had the same problem with my previous car a tdi golf which is just the same as the octavia

i tried all the same things as your self first but did not help it is when the turbo comes in it seems to kill the power until you reset everything by turning the engine off it really anoyed me as it took me about 2months to try and find as it would not always do it.

Hope this is of help to you if you need any more details let me know .

Thanks for this information, I'm no mechanic but I think the box you refer to is either the air pressure sensor or control valve??? In whihc case my dealer has already exchanged it. I forgot to mention when I posted my plea for help that my Octavia is still under the manufactures warranty. I went back to the dealer with it yesterday, they road tested it and experienced the problem for themselves they then put it on diags to interrogate the ECU to try to see where the failing was but the results were not conclusive.

They then spoke to Skoda technical about the problem who have told them they have to do what they referred to as a "block test" which, in laymans terms means following pages of wiring schematics/flow charts for the cars elecrical system to try to identify the faulty part. This can take hours apparently so they've booked my car in for a few days to give them time to block test/rectify the fault.

I'll post the end result as and when it is known in case other owners have a similar problem. Not sure if it's permitted to praise a dealer or not but if it is

I'd like to say a massive thanks to Withams of Hersham, top dealership, top staff, very friendly, very helpful and thouroughly nice people.

I'll post the end result as and when it is known in case other owners have a similar problem. Not sure if it's permitted to praise a dealer or not but if it is

I'd like to say a massive thanks to Withams of Hersham' date=' top dealership, top staff, very friendly, very helpful and thouroughly nice people.[/quote']

Dealer sounds like they are doing a good PR job, but i would hold off on the praise until your car works!

I had my car with the dealer today. The first dealer i went to didn't do anything, they basically said there was no fault logged, so no problem. I was with them twice in three months, and they didn't do anything useful. I took the car to a different dealer today, expained the problem, and the girl at the service desk said, yes these problems are very common. The mechanic test drove the car, but said he needs the car in for a full day as it could be 2 or 3 things so he would have to use the trial and error method.

Some dealers are just crap, and don't seem to want to take on anything other than straight forward work.

JD

It could be a turbo problem. The 110 has a mechanism for altering the turbo vane angle which affects its' power output. These sometimes stick providing too much pressure, the ECU logs this as I think 'regulating pressure limit surpassed' and effectively shuts down the turbo. We had one at work show the symptons which you desribe, and for diagnostic purposes we swapped with another one the air flow sensor, solenoid valves on the bulk head, sensor in the intercooler and the ECU - didn't make any difference at all. A Skoda exchange turbo cured the problem.

Hope mine doesn't need a new Turbo :(

Although it is under warranty so...

JD

It could be a turbo problem. The 110 has a mechanism for altering the turbo vane angle which affects its' power output. These sometimes stick providing too much pressure, the ECU logs this as I think 'regulating pressure limit surpassed' and effectively shuts down the turbo. We had one at work show the symptons which you desribe, and for diagnostic purposes we swapped with another one the air flow sensor, solenoid valves on the bulk head, sensor in the intercooler and the ECU - didn't make any difference at all. A Skoda exchange turbo cured the problem.

Thanks for this, I did suggest to my dealers that I thought it could have been the turbo when it went back in for the third time but they could find no log from the ECU other than the ECU itself was showing a fault, hence it's replacement. when they checked it last week they told me, as mentioned before that the ECU was not giving conclusive information about the problem,

I'm going to print off your response and take it with me when the car goes back in next Tuesday, every little bit of info I can give them will help I'm sure.

Thanks for this.

Thanks for this' date=' I did suggest to my dealers that I thought it could have been the turbo when it went back in for the third time but they could find no log from the ECU other than the ECU itself was showing a fault, hence it's replacement. when they checked it last week they told me, as mentioned before that the ECU was not giving conclusive information about the problem,

I'm going to print off your response and take it with me when the car goes back in next Tuesday, every little bit of info I can give them will help I'm sure.

Thanks for this.[/quote']

No logs showed up on mine, but its in today and the guy is going through everything he can think of to fix it. As i said, some dealers don't give a ****. Just phone skoda UK.

I should get mine back at 5, so i will post tomorrow to tell how i got on.

JD

Got the car back. Dealer checked the MAF which was ok. But changed a "turnover / changeover valve" whatever this is. They said that this should cure the problem.

Time will tell.

Thank god i got the octy back, had been driving around in a Favorite L all day. No power steering and it sounded like it was about to calf at any minute.

JD

Got the car back. Dealer checked the MAF which was ok. But changed a "turnover / changeover valve" whatever this is. They said that this should cure the problem.

The N239 - electro-changeover valve, maybe?

The N239 - electro-changeover valve, maybe?

Dunno, but i think they said it has an effect on the boost pressure. Would it be an N75?

Bakie,

The HonestJohn website has useful info gathered from Seat, VW, Audi and Skoda owners and mechanics. They have comprised a list of faults on the 90 and 110 tdi engine which they say may cause intermittent problems. If you haven't already seen it then:

Intermittent power loss on TDI 90s and 110s may be due to one of the following:- sticking turbo due to dirty oil; dirty or faulty mass airflow sensor; exhaust gas recircularion solenoid valve sticking open; wastegate valve actuator rod sticking; faulty throttle switches; faulty temperature sensor; loose or leaking brake servo pipe or turbo boost pipe from fuel pump to turbo; faulty ECU

I suggest you make this into a list, and get them to tick off what they have checked.

HTH

JD

OK,

The problem has been fixed, My car was with the dealers most of last week (Tuesday to Friday) so that they could do a thorough examination of the problem and put it right.

The problem was caused by a sticking control valve on the Turbo. They can get clogged up and eventually stick, when they do the ECU see's a problem with the Turbo and shuts it down until the engine is restarted.

My delaer liaised with Skoda UK Technical about the problem and were advised to clean and re-lube the control valve and that has resolved the problem. They fixed it on Wednesday and road tested it in cold start/normal running temp conditions until they were happy to let me have it back on Friday.

I spoke to them this morning to make sure I explained the cure to the problem correctly on here and they told me that Skoda UK have, this morning issued a note to dealers about this problem on the 110TDi's and that if dealers get cars coming back in with similar faults to follow the procedure of cleaning/re-lubricating the control valve on the Turbo.

Thanks to all who posted replies to my plea for help, Hopefully anyone else suffering with a similar fault can use this posting to get the problem sorted.

Bakie

Many thanks for posting feedback. Very useful.

Bakie

Glad to hear your dealer sorted out the problem for you.

JD

Well,

Following my posting a couple of weeks back to say the problem had been fixed may have been a little to premature. The problem was indeed cured, I'd been driving without any trouble until Wednesday this week when the problem came back as I was overtaking (on dual carriageway) a car, I felt the power go as I was changing up into 4th at about 3krpm. Reported it to the dealers on Wednesday and they wanted to speak to Skoda Technical again as the corrective action they had recommended had only temporarily resolved the problem. Happened again yesterday morning on the way to work, this time in 5th Gear at about 3krpm.

Car is now going back in to have a new Turbo fitted (once the dealers get it into stock) So the cure could be the control valve for anyone reading this witha similar problem on their 110TDi but if the problem comes back you could be looking at a new Turbo, I'm so glad my car is under warranty still.

Obviously the new Turbo should fix once and for all, will keep you posted, it's not going in to be replaced until the 14th July so watch this space.

Hi, I've just seen this thread and have been reading with interest because I have also been having no end of problems with my Octavia.

My problems started with the gearbox which kept crunching badly when going into second gear. It went back to my local dealer 3 times to be adjusted and messed about with before they finally got it in a fourth time and stripped and completely rebuilt the gearbox which took 3 weeks because they had to order and wait for parts!!

I then started getting the same power loss problems that has been described in this thread. My car was taken in 4 seperate times with this problem and each time they replaced and refurbished various parts (boost control valve I think and couple of other things). It seemed to improve temporarily but then the problem would come back after a few days.

Next, I started getting hairline cracks up my windscreen....one in the middle right from top to bottom and another one by the tax disc. These were diagnosed as stress fractures and the windscreen was replaced.

Beacuse of the power loss problems the car has since been back in again and had the turbo replaced last week. We were told this would definately cure the problem....

it hasn't

The car is still experiencing the same problems so I am now back at square one!! I will be phoning Skoda in the morning and no doubt they will have to have the car in again, and no doubt they will still not know what it is :confused:

I, personally, am getting thoroughly fed up with this car. It is only 10 months old, it has been going back to the dealer every week for the last two months and the dealers are some of the rudest, incompetent 'professionals' I have met.

Agggghhhhh!!!

I have had a new turbo fitted, and still have the problem, along with new n75, maf and changed fuel filters.....

Took car back to dealer and phoned Skoda UK again today - no joy whatsoever (surprise surprise!!).

They have absolutely no idea what is wrong with the car because everything they think it could be has been replaced now. It's not even showing up on engine management?? They have said they will have to arrange for an area technical manager to come down to look at it but it could be a couple of weeks before they even get here!! The dealers have said that my car could be in there anywhere from 2 to 4 weeks before they even get a diagnosis (if at all!!).....gggggrrrrrrr!!!

To top it all off, my car is a taxi so all the time it spends in the garage it is losing HUGE amounts of money, I can't get a courtesy car because it would be of no use as it couldn't be used to work, and as far as I'm aware I stand absolutely nowhere legally other than standard warranty procedures because I am a business customer and therefore not covered by the same legal consumer rights as private customers!!

This is a nightmare......

Took car back to dealer and phoned Skoda UK again today - no joy whatsoever (surprise surprise!!).

They have absolutely no idea what is wrong with the car because everything they think it could be has been replaced now. It's not even showing up on engine management?? They have said they will have to arrange for an area technical manager to come down to look at it but it could be a couple of weeks before they even get here!! The dealers have said that my car could be in there anywhere from 2 to 4 weeks before they even get a diagnosis (if at all!!).....gggggrrrrrrr!!!

To top it all off, my car is a taxi so all the time it spends in the garage it is losing HUGE amounts of money, I can't get a courtesy car because it would be of no use as it couldn't be used to work, and as far as I'm aware I stand absolutely nowhere legally other than standard warranty procedures because I am a business customer and therefore not covered by the same legal consumer rights as private customers!!

This is a nightmare......

This was my post originally and I sympathise with you greatly I just posted another thread about how fed up I am with my car at the moment but not because of recurring Turobo issues although I did lose power in mine about three weeks ago but it hasn't done it since and, because I had it remapped I am taking it to the guy who re-mapped it for me to see if the ECU recorded the failure and what may have caused it.

As for your Turbo fault the only part you haven't mentioned they replaced is the ECU itself! This was the third item my dealer replaced and it did seem to cure the problem for a few days only for it to come back again hence the eventual replacement of the Turbo itself and since then (back in 2005) until a few weeks back the problem had not re-surfaced.

It does seem from reading your tale of woe and other threads on the subject that there is no once and for all cure the problem could be attributed to many factors and in my case it may have been a combination of replacement parts that eventually resolved the problem, I can't say that if my dealer had swapped out the Turbo straight away I wouldn't have needed all the other parts they swapped up or not.

I see you are having little satisfaction with your dealer, where are you based? My dealer (Withams in Hersham, Surrey) are excellent they've never made me feel like I'm bothering them at all and have always been very helpful and courteous and they are one of the longest established dealers in the UK (over 20 years) and are a center of excellence and often are asked to trouble shoot faults that other dealers cannot resolve. If you are not too far away it may be worth contacting them.

I hope you can get your car sorted soon as it can't be easy having the tool of your trade taken away from you so often.

Good Luck

http://forums.tdiclub.com/showthread.php?t=123304