I've posted a bit about this on another forum, but figure I'd document it here for others benefit/info, as well as getting some more ideas from the VWW community.
Back story:
We have a 2012 Octavia VRS (petrol manual) that we bought with ~28,000km in July 2014. Car has been awesome and we love it to bits. It amazes me how much car you get for the $$$s. But... After a few months, the oil light pops on, so we top it up and go on our merry way as the 30,000km service was only a few weeks away. (I'm not a fan of mixing oil types/brands).
After the 30,000km service, we notice the oil light popped on again after around 1 or 2 thousand kms (roughly). Thinking that's a little odd, we topped it up again, and contacted the dealer where it was serviced.
They take it in for a oil consumption test, with the result being 450ml/1000kms.
The 'official figures' are up to 500ml/1000km.
I wasn't overly happy with this (we would end up replacing the entire oil capacity of the engine between every service) so I contacted Skoda (VW Australia).
VWAU suggest getting the car back to the dealer for some further testing.
I haven't got a copy of the results as yet, but the dealer said I will get them when the issue is considered 'closed'.
Test 1
They have now done a compression test - which has come back fine. (I glanced at the results and saw ~200psi written on the page for a few of the cylinders, didn't quite see all the results).
Test 2
At the recommendation of VWAU they then did a leak down test. This has come back fine (although I didn't see the results).
EDIT: When we eventually had the work completed, I as told that it actualyl failed the leakdown test on two cylinders.
Next step
VWAU have now recommended that they measure the bore and piston sizes. This would involve a fair bit of work, so the dealer is confirming with VWAU that they will be picking up the bill. I'm not sure what this will tell them though. I would think that the leakdown test would show any piston/bore interface issues?
The car is booked in for 2 weeks from now for this work... Will keep you updated with outcomes.
Surprised they haven't looked at the PCV as yet, as recommended by many VW/Skoda people on the web...
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