Hi - I have a 02 Octavia 1.9td that I bought off my dad. It has high mileage (110k) but has an ever bigger problem.. power loss which stops once the engine is turned off/on.

I've seen all of the posts on here about power loss over the last 6mths & ive changed parts MAF, fuel pump etc but the problem still exists. I've notice my fuel consumption is effected when the power loss occurs.

a part from that its a wicked car, very clean and reliable but the power problem isnt as sporadic as before, its now become a regular thing.

I did ask my dad if there was any problems b4 I bought it, he said there wasnt. When asked about the power loss he said.. ah that, thats nothing, its been happening for 2yrs & i was alright with it... if he wasnt my dad....

I know there are lots of posts regarding this but I've never saw one with a happy ending. Is this a problem Skoda can't fix?

thanks all..

The system is sensing overboost and shuts down the turbo causing the power loss,when you turn the ignition back on it is reset.

I get this frequently,Skoda want to replace the Turbo to fix it. There is a write up here somewhere, what is probably happening is the variable vanes in the turbo are stuck at maximum due to being coked up with soot.

Having spoken to a Garret turbo agent it is a known fault on all the VW group cars that use this turbo, the tolerances are incorrect between the vanes and body, the company I spoke to modify the turbo slightly and reckon it cures the fault permanently

This is the link you need to read ......... VNT15-Turbo

I had a Passat with the same engine & same problem changed all the usual suspects & it was the turbo that had gone. The vanes on the vnt turbo stick leading to overboost, easy to access on the passat due to the way the engine is mounted but not so easy on the octy!:thumbdwn:

hi all, thanks for the replies.

I've finally got round to having it looked at by a guy who fixes octy's all the time. He said it was a common problem with the octavia's.

unfortunately its the turbo that needs replacing. I asked him about sticky veins & he said its a sealed unit so it all needs replacing. He said it would cost around £600 for a new turbo with 5hrs (about) service charge, all in all, nearly 1k. or I could get a reconditioned one for around £250 - £400. I might as well buy a new one!

I've read loads of posts about 'loss of power' with even more suggested solutions, I believe only a turbo replacment will cure this problem. I might go back to fiesta's!!!

It's not sealed to the extent you can't try cleaning it - see link posted above.

And you could spend your £1k and still have the problem - there is no one single cause - the 'Honest John' site has a pretty comprehensive list I seem to recall (one of which is a particular run of ECUs). A lot of people live with the problem until they sell the car because they never manage to solve it!

http://briskoda.net/forums/items-sale/110-bhp-asv-engine-parts-sale/108817/

hi all, thanks for the replies.

I've finally got round to having it looked at by a guy who fixes octy's all the time. He said it was a common problem with the octavia's.

unfortunately its the turbo that needs replacing. I asked him about sticky veins & he said its a sealed unit so it all needs replacing. He said it would cost around £600 for a new turbo with 5hrs (about) service charge, all in all, nearly 1k. or I could get a reconditioned one for around £250 - £400. I might as well buy a new one!

I've read loads of posts about 'loss of power' with even more suggested solutions, I believe only a turbo replacment will cure this problem. I might go back to fiesta's!!!

Firstly as others have said they can be cleaned, they are not sealed, sounds like you are going to a fitter, not a mechanic.

S/hand turbos can be had for a lot less & ours was replaced with the Turbo from a 130 Fabia, came off a nearly new totalled car & cost £130. The boost pipe needs adapting but its the only thing that needs changing. Theres no way it should cost you £1000. I think you need to find a small independent specialist. If you are mechanically minded & can have the car off the road for a few days Im sure advice can be given by people on the forum to help you do it yopurself. Ours took about 6 hours to change but the "briskodian " who did it for me knew what he was doing

First step; get this guy to tell you the fault codes, cos it may not be the turbo-overboost problem he's presuming it is. In fact, I'll go as far as saying that if the car's not a 110bhp (TDi) model, that this isn't the problem!

Hi all, thanks again for the replies. I will ask for the fault codes. He did put it thru the vag com. I'm not going to rush into anything, I can't afford too, going on holiday in 3 weeks for a fortnight so between £600 - 1k will be spent in sunny spain & not on the tank in my garage! its lucky I bike to work every day. the car can sit and wait! And yes its definately a 110bhp TDi model. The thing is Ive already spent £300 on replacing parts to avoid buying a new turbo which have all failed to solve the problem. so when do I stop wasting money?

good thing is it comes under daddy-warentee!! since the wool is still firmy over my eyes he's agreed to pay half of the bill. so if it is the turbo.. £2400 for an 02 in ammaculate condition isnt too bad a price to pay. I bought it for 2k..

and no, im not mechanically minded, so thats that one out the window..the mechanic said it should take 5 hrs to replace.

thanks again folks! now i'm just confused..lol

Hi Mark, I've recently bought an Octy 130 bhp 1.9 tdi est with exactly the same problem. The first reply you got to your comment is exactly right. Its overboost coused by sticky veins due to sooting up over time. I can tell you the turbo can be taken off and rectified by fitting a new part/ no need to replace. The garage tried freeing it off first but it didn't last. A new turbo IS NOT required to fix this so common fault. I'm a VW man at heart and my Golf did exactly the same. The only good thing is , is that after the turbo is sorted, a slight modification is made and the problem NEVER returns. I'm sorry i don't know exactly what takes place to rectify the prob, as my Octy had full no quibble warrent and the garage was excellent with me, but my Golf cost me to do, and it was £200 inc labour. A company in Bradford W.Yorks are experts at Garett turbo faults.

Try going to a turbo re conditioners and getting a reconditioned turbo.

If it's been done properly it will be as good as a new turbo (eg all parts within manufacturing tolerance) and a lot cheaper.

Hi Mark, I've recently bought an Octy 130 bhp 1.9 tdi est with exactly the same problem. The first reply you got to your comment is exactly right. Its overboost coused by sticky veins due to sooting up over time. I can tell you the turbo can be taken off and rectified by fitting a new part/ no need to replace. The garage tried freeing it off first but it didn't last. A new turbo IS NOT required to fix this so common fault. I'm a VW man at heart and my Golf did exactly the same. The only good thing is , is that after the turbo is sorted, a slight modification is made and the problem NEVER returns. I'm sorry i don't know exactly what takes place to rectify the prob, as my Octy had full no quibble warrent and the garage was excellent with me, but my Golf cost me to do, and it was £200 inc labour. A company in Bradford W.Yorks are experts at Garett turbo faults.

Yeah, the VVT actuator is external and can be replaced separately from the actual turbo compressor unit.

I believe it can be quite hard to source the actual VVT actuator though?

thanks again for your help everyone, much appreciated. Whether its the turbo or sticky veins i need not worry any more as my dad has felt rather guilty over the fact his grandchildren are travelling in a car that gets stuck in limp mode over-taking at 70. its like an asmatic nana with 1 lung and a plaka hip, walking up-hill in her slippers, in a gale..lol power loss!! its getting embarrassing!

anyway... he has agreed to pay for a reconditioned turbo from a reputable dealer. So i'm not losing a penny. I've explained he might not need to but he insisted. So you could say i'm more than happy!

now just to tackle that beat-box indicator click! I read on here somewhere that an air duster can help.. lol, tried that today and its never stopped clicking. its on constantly now! The prodigy has helped dim the sound a little...

thanks again

I actually like a loud indicator click! I think the relay is behind the hadard switch, which can be retracted reasonably easily with a scrawdriver.

i also seemed to have lost all power last night am seriously hoping its not the turbo but wouldnt be surprised as its been whining for nearly a year now. i can hear the turbo spooling up and the boost pipes are pressurising, cant hear any boost leaks.

its a 1.9tdi 110 with 167k on the clock its a 51 plate.

it happened whilst i was boot to the floor coming off an island:(

a guy i work with is gonna scan it through vag-com tomorrow, was woundering if any of you guys had an idea

cheers

Hi Mark, I've recently bought an Octy 130 bhp 1.9 tdi est with exactly the same problem. The first reply you got to your comment is exactly right. Its overboost coused by sticky veins due to sooting up over time. I can tell you the turbo can be taken off and rectified by fitting a new part/ no need to replace.

Hmmm..have been wondering if my turbo is sticking. I can hear it spinning round, as it always has done, but there's no 'oomph' any more. It started playing up a while ago and at first would be fine, and then when accelerating the power would vanish totally (not good when overtaking). Now the power is not there at all and the other day I pulled out at a junction and nearly got overtaken by a caravan which caught me up :eek:. Economy is fine (managed 70+ mpg on a 45 mile cross country run this week) and the car still gets to 70-80 mph no problem, just not a quickly as it used to! Just wondered if when the vanes stick whether the turbo stops spinning altogether, so there's no noise at all?

can this happen to the petrol turbo's too?

I have just been quoted £905 for new turbo+gaskets and a days fitting with new oil and filter.

can this happen to the petrol turbo's too?

I have just been quoted £905 for new turbo+gaskets and a days fitting with new oil and filter.

Not sure what car you have but I have a KO3s that came off of my 52 plate Octy 4x4 when we fitted a bigger Turbo in the garage £150 if you collect from Winchester

Hmmm..have been wondering if my turbo is sticking. I can hear it spinning round, as it always has done, but there's no 'oomph' any more. It started playing up a while ago and at first would be fine, and then when accelerating the power would vanish totally (not good when overtaking). Now the power is not there at all and the other day I pulled out at a junction and nearly got overtaken by a caravan which caught me up :eek:. Economy is fine (managed 70+ mpg on a 45 mile cross country run this week) and the car still gets to 70-80 mph no problem, just not a quickly as it used to! Just wondered if when the vanes stick whether the turbo stops spinning altogether, so there's no noise at all?

Anyone able to tell me if the turbo stops spinning if the vanes are stuck? I still get the turbo 'whistle', but with none of the turbo 'thrust'! Have driven a hire car today and am not looking forward to getting back into the 'Slow-da' tomorrow....

The turbo still spins, but if the EMS has recorded an overboost condition caused by stuck vanes, the dump valve and a protective (low) fuel map are conspiring to rob power.

petrol models don't have variable vanes or (particularly) any soot, so no.

petrol models don't have variable vanes or (particularly) any soot, so no.

Slightly o/t, but the (black fuel) smokiest turbo I've actually seen in the last several years was a Lancer Evo.

The turbo still spins, but if the EMS has recorded an overboost condition caused by stuck vanes, the dump valve and a protective (low) fuel map are conspiring to rob power.

Hmmm...guess I need to get it onto VAG-COM and find out what is going on. I tried unplugging the MAF, but this didn't make any difference. I know that when my MAF went last time, unplugging it made a big difference, so I'm sure it's not that. The power came back for a while yesterday, but I got up to about 50 mph in 3rd, and the power cut back suddenly...guess this is a symptom of the vanes sticking, the overboost being sensed and the ECU taking the power down?