Hy! The pistons/piston rings are the problem. If you are lucky, you can get away only with piston rings if nothing else is affected. On my car, I replaced the engine block with a new one (old one was not in a bad condition, I'm sure with new piston rings problem would have been solved, but I had a new engine and just swapped it out). Beside engine..... engine mounts, flywheel, timing, AC radiator were replaced, and cylinder head reconditioned. Total costs, close to 2k euro. Done 10k km in last month with little to none oil consumption! So, my problem is fixed. Good luck with yours! 

I hope its only the piston rings.  I am planning to open up the engine but I'm a little affraid I would need to replace the pistons.  Here in Slovenia the pistons cost about 150 euro each and if the engine is opened up I need to replace the valve seals,  con rod bearings,  head gasket, head bolts (10 pcs)  and the 18 bolts that are holding together the cam shaft module.  And maybe I'm forgetting something. 

Does anyone know what is the difference between the 184hp ant 150hp engine.  The 150hp engine has less problems with the oil consumption and they should be basically the same.  

My friend works in an autoparts store and he says the piston part numbers are different

Another one experiencing the same issue. 2014 diesel 184 VRS around 105 thousand miles and has started burning a oil a lot quicker, around 1l every 4000 miles. No issues in the 10,000 I've done in it before then.

 

Rang Skoda and they gave the terrible manufacturer claim 1l per 1000km is within normal range but didn't recommend a lighter oil which would be worse for emissions so against recommendation but is known to burn a bit slower. Unsure whether to proceed further but Ill keep an eye on the oil consumption for now anyway. 

 

Has anyone else noticed the car slightly harder to start since the fuel consumption increased? I'm wondering is it a symptom of a larger issue 

 

Mine strarts like a kitty..  No mather the temp or weather and mine has compression on the low side.  And mine burns oil from max to min in 400km that should be 0.5L in 400km.

It seems that we all have worn piston rings.  Mine was burning oil from when I bought it  (147k kms) .  At first I tought it was a leak because the consumption was slow then over the years it started rising,  even when i fixed the oil leak in the head. 

A couple of mechanics told me to put 10w-60 oil inside that is used in Audi R8, Ferraris,...  It is not DPF frendly and quite thicker but I know how to clean the DPF filter so I tried it,  it is not a fix but I need something to slow down the burning so I can save up some money and do a complete rebuild. 

The car now suprisingly runs alot quieter but I haven't done enough kms to see if the consumption has dropped. 

They also said if my piston rings are siezed they could loosen up and slow down the consuption but this is only delaying the inevitable rebuild. 

If rebuilding the engine you don't really know how much it will cost until the engine is opened up.  If you have only worn piston rings you will at least need new piston rings,  new conrod bearings,  new head bolts,  new head module bolts, head gasket,  original VW sealing compound, new valve seals and new oil.  I don't know if the head needs leveling.  Some say if you take it off in steps it should be good and some say it needs leveling every time you take it off (why risk it if you are doing a complete rebuild).  Then there is the question what is with the cylinders them self.  How round are they,  how tampered are they.  Some say you only change the rings and check the bores if they are scratched and not shiny some even say you need honing even when everything looks good. 

In short i'm really in the dark. 

 

I'm having a similar issue too.

 

2.0 TDI Octavia VRS CUNA 

133,000 miles.

 

I purchased the car at 117,000 miles.

 

Have serviced everything including DSG, even changed the glow plugs including the one with sensor.

 

It's had quantum oil in.

 

Seems to be drinking at least approx 0.5 litre of oil per 1000 miles.

 

This oil consumption seems to be more active when I'm doing motorway/highway speeds, when the engine is going over 2000 revs.

 

I'm considering a few options at the moment.

 

I haven't yet done any mechanical inspections except check underneath for obvious leaks.

 

I don't want to spend much money on this issue ideally but do like the car.

 

All my online research seems to point to engine failures with piston/head etc.

 

My mechanic when quickly speaking to him about the issue suggests I check the turbo.

 

Also my car takes approximately 1 second longer than reckon it should take to start. 

 

 

 

 

 

Maybe check the compression. It won't tell you much but I susspect pistons/ piston rings. 

I have changed the oil to Castrol 10w-60 much thicker oil. The consumption went down alot but it is not DPF frendly. But I can clean the filter if it gets clogged up with ash. 

In my opinion this is a dissaster on all 184HP engines. I have two friends that were shocked when I told them about how much oil it uses. Now theirs started to eat oil. For me this is not a suprise anymore. 

I will never buy a TDI again. 

I had a 2.0 TDI before this that I got to 220,000 miles.

 

CAHA engine, didn't have any oil consumption issues with that.

 

Must be a design fault with this CUNA/CUPA engine?

Yeah i think this is more of a CUPA and CUNA enhine problem. I read somewhere that they install piston rings that are softer to lower the drag and thus lower the emissions. The biggest problem is when new the oil interval is 30k km and that siezes the piston rings and over time all hell breaks loose. One of the mechanics that suggested I use 10w-60 oil is that there is a small chance that the rings could get loose again and seal again. But that is a small chance and ofcourse the pistons and rings must not be damaged. 

On 10/09/2022 at 09:37, p733t said:

I'm having a similar issue too.

 

2.0 TDI Octavia VRS CUNA 

133,000 miles.

 

I purchased the car at 117,000 miles.

 

Have serviced everything including DSG, even changed the glow plugs including the one with sensor.

 

It's had quantum oil in.

 

Seems to be drinking at least approx 0.5 litre of oil per 1000 miles.

 

This oil consumption seems to be more active when I'm doing motorway/highway speeds, when the engine is going over 2000 revs.

 

I'm considering a few options at the moment.

 

I haven't yet done any mechanical inspections except check underneath for obvious leaks.

 

I don't want to spend much money on this issue ideally but do like the car.

 

All my online research seems to point to engine failures with piston/head etc.

 

My mechanic when quickly speaking to him about the issue suggests I check the turbo.

 

Also my car takes approximately 1 second longer than reckon it should take to start. 

 

 

 

 

 

I’m wondering how often was the oil changed? Do you have a service history?

After figuring out how bad these engines are I would believe not often enough.

 

I have a few ideas, I will update this thread within the next 8 weeks with my findings.

Maybe Volkswagens worst engine?

 

Gents, this is not a bad engine! Let's be clear! It's a very good engine, performance wise, good power, very good fuel economy, pulls great from low to high revs, no more issues with injectors, no more issues with egr's, etc, so, in my opinion this is a very good engine. Problem is VW.....and they're service interval recommendation and the naive people who owned them and did the oil change at 30k km! This is a car that supposed to be 'sporty', in fact it is, and when you run hard on the highway with that 15k+ oil, who lost his properties, you begin to destroy everything inside. I have friends who bought the car brand new, did the oil change at max 10k km, and there are no such problems! VW is the problem! And they know that, that's why they stated in the manual that 1L/1k km is fine, so that there will be no legal charges! By the time the car will burn more than that, it will be out of the warranty, and noting for the owners to do, legally. 

My advice to you all, repair the engine, because is a good engine. You will be surprised to see how much it will change afterwards. It will pull better, sound will be deeper, fuel economy will be better....only good things. I have 12k km since the engine rebuilt, and it runs so smooth. I'm using Ravenol 5W30 VMP USVO, expensive, but good. Oil temps not going more than 117-118, with an ambient of 30-33, on highway, 200km/h +. Great improvement over everything I tried before. Moțul, Castrol, Millers, LiquiMolly. 

 

What did you replace in the rebuild? 

@CristianCCI  Do you have a copy or link to a manual where VW state "1L/1K km is fine."

 

It is 0.5 litres in 1,000 km.   (621 miles)   so 1litre in 2,000 km (1,242 miles)

 

There has been years in the UK of dealership staff without a clue say 1 litres use in 621 miles was ok and it never has been.

Neither is 0.5 litres in 621 miles for normal use on UK roads in normal UK weather. 

@roottoot

No, I don't, either way 0.5, 1L is still too much. So in fact is worst, which confirms my idea that VW did this 0.5/1000 km $hit just to cover they're a$$'s. 

 

@TadyTheFish

I replaced the entire block with a new one (around 15k km) from a dismantling shop (shop is owned by my brother in law), cylinder head fully reconditioned with new valves, guides and seal rings. Also did the surface leveling (was not necessary, but did it anyways). New gaskets, bolts, studs, timing, engine mounts, flywheel, etc....total costs in Romania around 2k euro. 

@CristianCCI

Best not be the cause of internet myths then. 

 

0.5 litres in 1,000 km is not good.     

You posted that it was 1 litre in 1,000 km.   that is worse.  Twice as bad. 

 

http://briskoda.net/forums/topic/472431-fabia-vrs-mk2-cave-issues-and-tsbs

 

Edited 12 September, 20223 yr by roottoot

Completely agree with @CristianCCI! VW service intervals are piece of ****! I bought mine with full service history on its 4th year and 100k km with 3 oil changes... Three! It was hard to find same model with more frequent service intervals because all of them were following "VW Service Plan". For my car the PR code in the service book shows QI5 which is variable service(30k km or 2 years whichever comes first).

At the moment I bought the car I started changing it every 10k km and thankfully I have no oil consumption issues so far(CUNA engine).

 

There are people with same engines CUPA and CUNA who did the service on half of the recommended interval and have no oil consumption issues as well. It's not the engine, it's the service plan!

 

VW service plans are intended to force you to change the car every 4 years, making the vehicle maintenance for that period cheap and of course more eco-friendly...

 

Someone who understand a little bit of engine oils will know that there is no oil keeping its properties after 15k km, even if you only do highway miles. Neither PAOs nor Esters, sorry.

 

It's uncommon for people in Europe and UK to do oil analysis of their engine oils. But many guys in US do, and you can see their test results from laboratories like Blackstone labs where oil properties degrade significantly during the variable service intervals. Such test results can be seen in BITOG and Oil Club.ru forums if you are interested.

Edited 14 September, 20223 yr by fr1nklyn

For those not doing high annual mileages or maybe business use of a car that goes back after 3 years then it is sensible to do Oil & Filter changes to a Fixed Service Regime of 15,000 km / 9,400 miles.

But then Volkswagen Group are not telling anyone to leave a car on Variable / Flexible servicing just because the car leaves the factory able to do that.

http://volkswagen.co.uk/en/owners-and-drivers/servicing/service-plans/service-schedules.html

 

No idea what the 10,000 km / 6,200 mile oil changes is about unless that is maybe what is all some is covering in a year. 

 

.....................................................

Oil tests / analysis and quality checks is 'Simply Clever'

In the USA there has been lots of Oil & Filter shops changing oil at short periods for decades.

But in the US there are different Gasoline Fuels.

 

Here we are talking Diesels though, so it is common sense if talking 'Oil Recommendations, Specs, Service Schedules you look at the difference between US Diesel / DERV  and European Diesel / Derv / Heavy OIl road fuel. 

 

Edited 14 September, 20223 yr by roottoot

@CristianCCI

 

Hi, you have made some very good point here, thank for the info.

 

My car goes in to Skoda this week for a diagnosis. I'll let you know how it turns out. I've set aside 4k for a rebuild as I'm expecting the worst. We'll see....

Yes please keep us posted. If you decide for a rebuild ask for some pictures😁

Just an update to say there is no real update yet.

They wanted to do the oil test. 1,000km and they will then weight what was used. I warned them the test was not possible as the oil light would come on before then, but hey ho, we did what we could. A nice trip to Salzburg and back, to knock up most of it on a highway, sitting at about 110kmh most of the way, Austria being Austria. Then finishing off around the local area until the light came on.

695km, then the low oil warning. Of course, I wasn't allowed to put any oil in, so 751km when it was delivered back. That'll be a full litre of oil used to do that.

Now I await the next diagnosis from them. They had suggested that, despite it being 5 years old, maybe there would be some goodwill gesture from Skoda. But they didn't like that one of the services was not done by a Skoda dealer. We will see. I'm not holding my breath.

More news soon I hope.....

I can tell you that you will be dissapointed. Skoda has no good will

I bought mine used 4 years old and I made one non authourized service (oil change) when the car was 5 years old I noticed that there was some rust areound the license plate lights.. I spok to a friend of mine that work at a authourized Skoda service and he tried to fix it under warranty. Skoda told him that the request is denied because one of the service intervals was not made at a authorized service. 

The chassy has nothing to do with the service intervals and still it made no difference

So this is where it is up to.

Skoda calculations were 1.15 litres per 1,000km. So pretty much were I predicted.

The diagnosis by Skoda was a new engine. Repair not possible as there would be too many unknowns. That was quoted as 11,700 euro for the engine to be supplied and fitted. No doubt some other costs on the way.


After lots of discussions between the dealer and Skoda, they have agreed the following; 7,800 euro fixed cost, including all work to date and DDV (VAT). Nothing more to pay. Skoda will pay the rest. In addition, I will get a two year Skoda warranty on the engine and all work. So despite one oil change away from Skoda, and the vehicle being out of warranty for 2 years, Skoda did give me around 4k of subsidy.

It's a pretty hefty amount, but I can just about justify it, in that the car value seems to be 4,000 euro more than I paid 2 years ago for it, and I've saved about 3k on fuel in the last two years, compared to my old car. Almost quits for two years use, and the 2 year warranty swings it for me.

Oh yes, and the engine has the upgraded pistons/rings etc in it, so this shouldn't occur again.

For info, I explored other options for fitting a used engine. There are plenty for sale in Germany/Austria. Prices seem to be from 2k to 4k, with warranties from 30 days to 1 year. Mileage on the engines varied from 50k kms to 150k kms. Fitting can be assumed as another 800-1,000 euro. No real guarantees with any of that though, and the work would be done by a private garage. For me, the potential saving of 2-3k isn't worth it, to end up with a used engine, with the original design flaw (if that is what we can call it). I think the new engine should add some good value to the vehicle at resale.

I'll drop a note about a month from now to confirm the car is running well (or not). I will also try to get photos of the old engine, and what the actual fault was, when it is all removed.

If anybody would like to buy the old engine (block and head), then it will probably be available in about one month. The head is almost certainly in good condition. The block is expected to require a rebore/honing, new pistons, rings etc. But if you fancy refurbishing an engine rather than buying a used one, this could be an option for you. Maybe I can then offset that last 1k to fully justify my decision 🤣

Where are you from (since you are talking about DDV 🤣🙈) are you from Slovenia? 

I'm thinking about pulling mine appart. For me the biggest problem is that I will be without a car

Yes, in Slovenia.

Maybe you need my old one to rebuild first, then you just swap 🙂

Or try the dealer in Kranj. They will be very experienced in this fault real soon 😉

 

Edited 26 October, 20223 yr by BrettJ