Hello I am new to this forum as I have only just purchased my Skoda.

It is a 2010 Skoda Scout 1.8 Tsi, atheistically its a great looking car but has a major problem it smokes and uses oil! The car was brought from auction with no warranty so I have no come back, it came with full service history with mostly main dealer followed by a couple of independents and serviced at 10,000 mile intervals (currently showing 80,000 miles).

 

I have taken it to my local very good mechanic who has changed the oil (5w-30) replaced the spark plugs (number 4 was absolutely gone), replaced number 4 cylinder coil and also done a compression test which is all good.

 

The car is running great apart from when the oil is hot and you are in a low rev situation and accelerate away it smokes (still pulls away ok) this does not happen when its cold. It looks like to my mechanic it has had a very recent turbo change.

 

My mechanic is saying the cost to strip the engine down and investigate the problem further is going to make it uneconomical and would be better off either getting rid of it or putting a second hand engine in.

 

I suppose what I am asking is if you have any advice on things I can look at before going down either of these routes.

 

Many Thanks

 

 

Someone may correct me but I believe the issue is down to a batch of faulty Piston rings used in VW Group cars between 2009-2011. My 59 plate 2.0 TSI VRS also liked to consume oil by the time it left my ownership to the point where it used a litre every 1200 miles (also 80k mileage). Never looked into costs but I'd imagine stripping down and replacing the piston rings may be quite expensive.

 

Between the oil usage and the worry of chain cam tensioner failure, I ended up trading in for a newer, low mileage MK3.

Edited 11 October, 20178 yr by ahenners

HI thanks for the quick reply but if the piston rings where shot would I be getting good compression results or can they be misleading ?

 

Cheers

Likely to be the well known ea888 1.8tsi and 2.0tsi ring design weakness if the turbo checks out ok. Badly installed new or recon turbos can fail prematurely too though but in these threads it is rings most of the time.

 

Review engine 1.8 / 2.0 tsi engine failure thread for detail. 

 

Compression checks out ok or even improved for a while because it is the oil control ring that has clogged. Eventually the significant oil use in the combustion chamber kills  the engine. 

I would go with rings as well, It's a new or good second hand engine needed, later mid 2010 on 1.8/2.0 tsi engine's have a different oil control ring design and bigger gudgen pin's, so the problem was much improved.

 

you can't rebuild an early TSi with the later design pistons either as the bore size is slightly different (later pistons are slightly bigger so won't in the earlier smaller bore.)

Thanks for the responses and I fear it is either the piston rings or oil scrapper rings but I have one last hope in that the PCV has never been replaced is this worth looking at? as I say I suspect this won't be the problem. The only thing is the engine is running fine plenty of power etc but it smokes and uses a lot of oil half a dipstick in less than 10 miles but not enough smoke to account for this oil loss.

 

Am I dreaming or is this a possibility, I am certainly no mechanic so your advice is much appreciated as I don't won't to put loads of money into a sick engine.

 

500ml in 10 miles? I fear the engine is caput. Im surprised it is still running at that level. Or the turbo is faulty... It cant be pcv with that level of usage IMO. 

 

My recollection was the revised pistons / con rods were mid 2011. I also understood the skoda tpi allowed replacement pistin / ring sets together with con rods but it is like a £3k fix.

Edited 11 October, 20178 yr by TheClient

again thank you, yes I am surprised at that level of consumption but I have guessed that between going from max oil to min oil on dip stick is 1 litre (not sure that is correct) but it has used half a dip stick in that milage. The Stange thing is I would expect it to be billowing out smoke like a cartoon but it isn't 90 percent of the time its smoke free its only when at low revs and I accelerate that it smokes but never dramatically just like a bad Diesel engine !! Acceleration is fine no problems and water levels are all good!

Cheers

I fully agree with TheClient, the engine is kaput ... When you compared all four spark plugs, have you seen any difference between them? When not, could be the turbo, PCV or anything else, what is common for all four cylinders, but I bet it is the well known issue with low oil scraper rings of 1,5mm with only very small drainage holes. When the fourth plug was destroyed, it is the worst cylinder which prone to fail as first one, exhaust valve gets burned soon ...

https://www.briskoda.net/forums/topic/266114-18tsi-and-20tsi-engine-failures/?do=findComment&comment=4838121

 

To correct the info, on 1,8TSI familly EA888 are in risk all bettween 5/2009 till 30/5/2011. Then new design of piston ring was used (2mm height, still just drilled holes, piston diameter 0,03mm smaller, new piston pin 23mm instead previously used 21mm. Minor change happend in October 2011, first piston ring, the top one, got higher of 0,2mm. What is very sad, these new pistons/rings can fail too after driving more miles then previous ones, holes get clogged again. VAG therefore swapped in 2015/2016 for service purposse on latest pistons using SLF Three Piece Flex rings instead of DLF Two Piece rings ...)

https://www.hastingspistonrings.com/piston-rings/oil-control-rings

Cylinders bore of EA888 1.8 TSI (2,0TSI too) is still the same, 82,51mm, VAG only changed (got smaller) diameter of new pistons to lower friction losses ...

 

So, solution which offers you VAG now is new pistons + new conrods as 21mm pistons for second generation of EA888 are not available at ETKA ... One very smart russian mechanic but found one way without a need for new conrod, and this is piston from first generation (engine BZB etc) Part numer 06H107065BK available at VAG, or any good aftermarket just as KolbenSchmidt 40251600 (I trully believe same design used on all CDAA from their begining till 5/2009). As a bonus to those 2mm control rings, they have drainage slots instead of just drilled drainage holes, which can´t get clogged that easy on direct inject engine producing more soot then older MPI engines ...

 

 

 

On 11/10/2017 at 13:19, ahenners said:

Someone may correct me but I believe the issue is down to a batch of faulty Piston rings used in VW Group cars between 2009-2011. My 59 plate 2.0 TSI VRS also liked to consume oil by the time it left my ownership to the point where it used a litre every 1200 miles (also 80k mileage). Never looked into costs but I'd imagine stripping down and replacing the piston rings may be quite expensive.

 

Between the oil usage and the worry of chain cam tensioner failure, I ended up trading in for a newer, low mileage MK3.

 

This is on the cards for me now too :(

9 minutes ago, planehazza said:

 

This is on the cards for me now too :(

 

Damn... If I recall you replaced quite a few bits on yours already i.e. Manifold intake etc. 

 

 

33 minutes ago, ahenners said:

 

Damn... If I recall you replaced quite a few bits on yours already i.e. Manifold intake etc. 

 

 

 

Yup, probably £3k in PCV, coils, plugs, DV, IM, suspension, labour...

Sorry to hear that, I am going for one last ditch attempt and have ordered a new PCV valve as it's the original one on there with 80,000 miles on it.

 

Worth ago will let you know how I got on.

 

As TheClient already wrote, 0,5l per 10miles is unthinkable, definitelly not an PCV/separator issue, save you money and do not get new one. Let check again all plugs and give here one photo of them. Still could be the turbo, but nothing else I guess, rings or turbo ...

48 minutes ago, planehazza said:

 

Yup, probably £3k in PCV, coils, plugs, DV, IM, suspension, labour...

Sad, but still could be worse. That is why I was still suspicious about your trouble with upgrade, on engine with lower oil consumption would be no such problems, but just my personal guess. Shark did not comment that, according them it is in limits?

This really does sound like the engine is FUBAR.

 

What colour is the smoke? I'm expecting blue or white.

Will be dark black as from diesel, burning oil as old diesel ...

 

See 1:40 and 3:55min

 

https://www.npo.nl/radar/28-09-2015/AT_2038987/POMS_AT_2125973#8ffcc1cee

Edited 12 October, 20178 yr by rayx

Hi thanks for all the input I really appreciate it, I will pull the plugs tomorrow and post a pick. 

The smoke is a light darkish white (it does smell oily) and only happens when I have been coasting then accelerate hard or pulling away from stand still. Its certainly not a massive plum where I can't see behind me but it certainly noticeable.

 

I am now absolutely convinced its the rings but have already order the PCV valve so might as well stick it on.

 

 

Also engine runs absolutely fine plenty of power and ticks over very nicely with no unusual noises

Hi Just thought I would update, so have changed the PCV valve and covered just over 250miles, engine running very well no noticeable oil consumption and no smoking (for the first 100 miles it will still smoke a little but have put that down to residual oil in the exhaust ) I am going to have an oil change tomorrow and change from 5w-30 to 5w-40 as will be changing oil at roughly 5k intervals.

 

Also I think my original oil consumption figures where way out as I was toping the oil off when warm and then driving and checking again with engine cold left over night. The consequence being that when cold under the min and when measured once warm then left 20 mins almost max.

 

Well that is some turn around. It could be an incredible recovery from what sounded a terminal situation to me and your mechanic?.... Your oil consumption figures and the plug spelled bad bad news based on these engines. Let us know once you've got 600 - 1000 miles under the belt. I hope it stays ok. 

Thanks I will keep you posted and I am certainly not of the woods yet but I will keep my fingers crossed.

cheers

 

Ps worth probably replacing the other 3 plugs and after some running miles remove, inspect, photograph. Post on here if u like. They usually tell a story. 

Hi again thanks for the good advice, I have just changed the oil and will replace the other plugs over the weekend. As you suggest I will pull them out after a few hundred miles and take some pics.

Its going to be couple of weeks as I am going to be away working but will keep you posted