Hi all thanks for having me, i have a problem with the above not mine but me best mates car, i,m a small independant and he asked me to service it basic oil n filter change was done book stamped all good, 4 weeks/ 2000 miles down the road he says car not running well rattle from engine, i surgest he takes it to agents it,s under warrenty, i get a phone call to say it,s got 3 litres of oil too much in it and it,s damaged the engine from him, i rang them and they said they have run diagnostic, inconclusive, fitted 4 plugs, drained oil, added new oil, will have to strip engine to find fault they thought it might have hydraulicked, not covered under warrenty due to over filling, cost so far £285.00 which i payed, had the vehicle recovered back to mine before they went any further, the car runs for a very short time but is well over fueling,plugs are well black and there is noise from top of engine, no fault codes in ecu, I know i have,nt over filled this not by 6 pints i,m sure this is an over fueling problem, does anyone know of a problem with these at all, any surrgestions where to go next with this one please lads

If you think it's over fuelling then get the oil analysed - with 6 pints of petrol mixed with the fuel, it should stink & will light up with a match. Suely the dealership would have smelt the fuel. For the $60 it costs for basic oil analysis it might save you $1500+ in rebuild costs.

Not sure if it helps but my TSI had a faulty Fuel Pressure Regulator at about 7,000km - no symptoms to speak of. Working one minute, engine was mis-firing & wouldn't rev beyond 3000rpm the next.

Thanks for the reply brad but unfortunatly the agents drained this and fitted new oil !!!!!! there are small pockets of engine oil inthe engine that have very heavy deposits of fuel in them

Sounds bad news - with oil potentially thinned down that much it could have done bearing damage I would immagine.Hope you get it resolved OK .. I wouldn't accept any of their conclusions about overfill - especially if they haven't kept the removed oil for examination.

Thanks for the reply brad but unfortunatly the agents drained this and fitted new oil !!!!!! there are small pockets of engine oil inthe engine that have very heavy deposits of fuel in them

You only need 100ml to get an analysis.

Bit of a bugger though - I can see this turning into a "he said/she said" type argument with your mate in the middle.

just an update lads, i,m letting a skoda tech have a look at it he,s just set up on his own and he has a main agents tool for diagnostics better than my snappy thing hope he can shed some light on the running fault which may have lead to the reason for sump full of oil/petrol will keep you informed, thanks for your replys lads

Please do keep us informed.

Skoda is a new brand in AUS & I really doubt the diagnostic abilities of my dealer.

If it had that much petrol in the oil the cams/followers could be worn (one of the areas that VAG engines seem to be a bit sensitive about, needing good lubrication with the correct VW spec oil).

What sort of oil did you put in it (hopefully VW approved 504/507) ?

Also with that much excess oil in the engine it may have damaged the catalytic converter in the exhaust.

If it had that much petrol in the oil the cams/followers could be worn (one of the areas that VAG engines seem to be a bit sensitive about, needing good lubrication with the correct VW spec oil).

What sort of oil did you put in it (hopefully VW approved 504/507) ?

Also with that much excess oil in the engine it may have damaged the catalytic converter in the exhaust.

The 1.8T only mandates 504/507 if it's on variable service. If it's on fixed service then you can use 501.01, 502.00 or 504.00 spec.

The 1.8T only mandates 504/507 if it's on variable service. If it's on fixed service then you can use 501.01, 502.00 or 504.00 spec.

Maybe so, but if it was mine I'd only be putting 504.00 into it, as it is a better oil

I take the approach that even a good quality oil is cheap compared to an engine, and I tend to keep my cars for a long time (I've just sold my previous every day car after 18 years of unecventful ownership).

Maybe so, but if it was mine I'd only be putting 504.00 into it, as it is a better oil

I take the approach that even a good quality oil is cheap compared to an engine, and I tend to keep my cars for a long time (I've just sold my previous every day car after 18 years of unecventful ownership).

It's a better oil if you are on the long oil change intervals but not necessarily better if you are on std 15,000km change intervals. The oil guy on here (hunkey donkey / donkey kong?) explains why in another thread.

While I can see the point of spending a few dollars extra, there's a point where diminishing returns play a part. eg: I'm happy to buy Castrol Edge 5w30 from SCA when it's on special for $29.95 - fantastic value when compared to semi-synth Magnatec @ $25; but I'm not overly convinced that $70+ for the other oils is worth it if they aren't mandatory.

The other point I was trying to make is that using oils that are a lower spec than a 504 oil won't affect the warranty.

The other thing to keep in mind is that not all changes to oil spec are to give a better performing oil. There have been a few changes to SAE specs (back in the '80s ?? IIRC) that included compliance with pollution controls & resulted in some of the antiwear agents being removed.

What oil to put in the 1.8T is kinda irrelevant to the OPs situation, lets not wander off here.

Ok Lummox - back "On Topic" as instructed.

Thanks for the reply brad but unfortunatly the agents drained this and fitted new oil !!!!!! there are small pockets of engine oil inthe engine that have very heavy deposits of fuel in them

I'd be getting the small pockets of old oil analysed for petrol. And looking for a sticky injector (that might be the cause of the over fuelling, as the ECU isn't giving you any clues). Do you have access to a fuel injection specialist ?

If you can't find the fault it might be worth telling the agents (who say there is nothing wrong) and also SUK that your mate intends to keep driving it around (seeing as there is nothing wrong with the car !), and when it conks out or explodes because of the petrol in the oil then he'll be back to get it fixed under warranty (and also suing for any consequential damages). Oh, and the local TV station is interested in some video footage if it is a spectacular demise.

That might get their attention (the possibility of an Oct fireball and subsequent adverse publicity that is).

Not that you or your friend should actually do this, but if they believe you are angry enough to try it they might take you more seriously.

another update lads, the plot thickens, got it back from the skoda tech,NO codes he surgested back to basics, re fitted old oil filter and then started car held revs on at about 3,000 where it would continue to run and slowly the engine noise started to quite,en down after about 5 mins the engine was able to tick over, took it on a run of about 15 miles, stuttered and spluttered for the first few mins and then came on song, car ticks over ok but has very loud rattle from the high pressure pump and checked the dipstick, the oil level had risen by 1cm, to me looks like a fauly pressure pump leaking petrol in to the engine? it gets worse, SORRY i did,nt mention this in my first post but used a non genuine oil filter but used a mann OE spec one due too main agents going bust, checked with supplier for correct fittment, yes we think it,s the right one !!!!!! so phoned mann up direct they said they don,t do a filter for the BZB engine yet he thinks, i,ll have to wait till after new year when tech guys are back to see if fitting the filter that was supplied may have caused the problem, sorry to off load all this on you guys and thanks for your take,ing time to read the long post,s. To be continued

I have heard of severe wear problems with VAG high pressure fuel pumps and assciated cam lobes on the cam belt 2.0 TFSI engine, so probably worth having a look at it too (but hadn't heard of one leaking fuel into the crankcase before). IIRC the 1.8T EA888 engine has 4 cam lobes to drive the fuel pump and wasn't supposed to have this problem.

We'll all be interested in the final diagnosis.

spoke to a very nice man from mann filters, they do make the filter for these vehicles but only sell to the dealers and not to factors, we have now replaced the oil filter with new one from main agents flushed the system through and replaced high pressure pump, engine sounds fine mates been running it now for a week but is droping it off tomorrow, says it,s using more fuel than normal and the oil in the sump has risen on the dip stick ??? yet the engine runs sweet, had the emmissions checked after fitting the high pressure pump and all was ok checked on idle and high revs, having it scanned with dealer tool tomorrow see if that can shed any light on the fuel and oil situation, fingers crossed may be a sensor fault, god this has given me a few sleepless nights

report back from the gararge scan with dealer tool all ok, i,m going to have a nervous breakdown with this one, any ideas where to go with this one lads

Has the level increased on the dipstick at all? Can you have the oil tested for petrol contamination?

Good luck with this one, what a nightmare its been so far. Have you been left much out of pocket?

out of pocket to the tune of £550 so far, going to giv him the car back and let him run it for another week and monitor oil level, has been surgested by some one could be the liners have gone shiney and fuel is passing down the side of the pistons, to cure re ring and deglaze on bores, have done compression test and all is fine, and no excess crankcase pressure, don,t want to go down that road if not needed

What a PITA this has been for you. :eek:

I have posed a few questions which may not be the precise problem this car has, but could suggest some ideas that get you looking and thinking differently.

I'm sceptical that poor ring/bore seal alone could cause the problems you are seeing. I would have thought that there would have to be a very serious over-fuelling problem for there to even be any liquid petrol in the cylinders at all, let alone enough to get past the rings in any significant amount (normally petrol should come out of the injector as a very fine spray only). And the good results you got on compression testing would further rule that out as a root cause.

Did you check the Air/Fuel ratio (independently, from the exhaust) when you did the emission tests ?

It still sounds a bit like an over-fuelling or fuel leakage problem to me (which could be down to a faulty temp sensor - if the engine thinks it is cold when it is actually warm it will supply too much petrol).

The other usual suspect is the high pressure fuel pump (even though you replaced it did you have to re-use any parts eg O-rings ?). Any evidence of petrol leaking into the engine where the fuel pump mounts ?

If the car has the MFD capable of showing the instantaneous fuel consumption does that show up any anomalies (such as excessive consumption at idle or at some particular revs and throttle opening) ?

I hope you get to the bottom of this puzzle soon.

Edited 14 January, 200917 yr by gregozedobe

So why are you out of pocket fella when this is clearly a warranty issue??