Thanks for that post; I would dearly love to hear more of your experience with the engine. So much of what I have read is very vague and I am not at all sure how people can hope to identify that they have an impending problem.
[*]How often did you (do you) check your oil level?
[*]Was there any instrumented warning?
In my particular trim, the car is equipped with low oil level indicator, when the level drops to just above min on bayonet a message "check oil" is displayed on the maxidot panel next to speedometer, so it's impossible to miss.
Most TSI engines run on long/variable service intervals from factory, so the electronics in the car itself adjust service intervals according to viscosity and state of the oil in sump. In my particular case service intervals requested by the car would always fall anywhere between 17,000 and 22,000 (even at the end where it would literally have no trace of original oil after few thousand miles). The car required no top of oil in the first 20,000 miles (first oil change after about 3,000 from new, just to clear the sump after running in, then first variable service approx 17,500 miles later).
It then gradually started taking oil, first time I saw the "check oil" message was at around 28,000, I even remember where I was at the time, as I stopped right next to Stonehenge to top it up with what was left in the bottle Skoda handed over to me after service (the sump takes something like 4.6 litres, so there is a little left in 5x1 litre bottles they charge for at the end)
From then on I knew exactly what the problem was, I kept checking bayonet every 2,000 miles, later on 1,000 miles, then every 500 miles, at the end, as it drunk so much. From 40,000 miles I also kept insisting on weighting tests (at my own costs) with every service. Each time I was told "Mr. v0n, these cars do take oil, why don't you just accept it".
[*]Which version of the engine did you have (CAVE/CTHE)? From the age of your car, I'm guessing the former.
2010 1.8TSI engine version CDA
[*]Did you have the breather pipe modification?
No, breather pipe is supposed to prevent damage, doesn't help if the damage is already done. I know it's a fix that Audi provide for their TSI's drinking oil, but in my case Skoda denied the problem for too long, and chose to battle with me. They refused warranty fix despite problem starting during original warranty process and continuing when I purchased Skoda's own extended warranty. They said the problem cannot be fixed under original warranty, because problem was within manufacturer tolerances (which is 1litre per 1000 miles, as written in manual book, now think about it for a second, entire sump of oil gone in under 5000 miles - a norm) and they don't even investigate until oil consumption reaches 0.5 litres per 1000 miles). And they couldn't fix it under extended Skoda warranty, because problem was pre-existing. As if there was a magical time warp with my car driving endlessly between the two.
When they finally agreed there is a problem and few months later to fix it, it was too late for oil pressure fixes. They had to refurb the whole engine. On the day of "surgery" I delivered the vehicle in limp mode with two cylinders no longer holding pressure.
[*]Did you have the ECU updated by Skoda?
Just standard unrelated update when they replaced gear box for the first time. Oh, yeah, did mention, I am on my second DSG7 gearbox, and the second one is now with second set of clutches.
[*]Is your engine "tuned" or bog standard?
Standard, factory mapping.
[*]Do you take your car to "track days"?
Nopes, I do take it to London to sit in traffic every day. And oddly enough, oil consumption used to go through the roof in traffic, I never had any issues on autobahn for example.
My apologies if this sounds like the Spanish Inquisition, I am just keen to hear some detailed real world experience.
Not at all, fire away, I have logs, receipts, exact milages, etc. I realise my experience with 1.8TSI is not as helpful as experience with 1.4TSI for the thread, but all I can tell you - in my experience Skoda UK will do everything to derail any claims and fixes for . At the end, they had to create this weird hybrid, where 50% was paid by Skoda UK (that's importer, not manufacturer), 20% was paid by customer services who sold the car, 20% was paid by dealer I serviced the car with and 10% was paid by me (that was more of me insisting on new chain and few other parts when the engine was still open, work was for free, parts I paid for).