Hello all
I new here and badly need help. My Octavia FL 1.8tsi is drinking too much oil about 1l on 300km so i decidet to "freshen" or "refreshe" my engine. What do i need? My plan is to take old pistons and rods if they aren't damaged but new piston rings bearings and valves. 

After that will the oil consumption drop or stay? Olso i read about factory piston ring that are smaller so thats reason for oil consumption. Which rings should i put in that configuration of old piston and rod?

Thanks every one =)

So your engine code CDAA or CDAB already using that much oil, 1l on 300km (allowed maximum per manufacturer is up to 0,5l on 1000km, when you calculate it, you are on 0,5l on just 150km or 3,33l on 1000km) that is too bad ...

And according your info you can not start your engine any more, I am 99% sure it is not just problem of melted spark plugs, it looks like melted exhaust valve ...

 

and therefore you will need to do more than just new piston rings. What exactly you will need you find out when you dive into the engine, you might end up rather with another engine ...

 

Lot of source for info here or on the web

https://translate.google.co.uk/translate?hl=cs&sl=nl&tl=en&u=http%3A%2F%2Fhartogtuning.nl%2Foh_ht_news.php%3Ff%3D84

http://vwts.ru/forum/index.php?showtopic=192986

http://vwts.ru/articles/engine/cdab_problem.html

https://www.drive2.ru/users/suslikrus/

https://www.youtube.com/channel/UCiuHVkQbM3b9Pp0nSf8qZsg

https://www.instagram.com/suslikrus/

 

https://www.briskoda.net/forums/topic/454127-18tsi-blowing-black-smoke/

https://www.briskoda.net/forums/topic/450916-18-tsi-oil-issues/

https://www.briskoda.net/forums/topic/452542-disappearing-oil/?tab=comments#comment-5086149

 

 

Engine code is CDAA on clock is 170 000km and yes is drinking a lot but my fault im using 5w30 Castrol Edge Pro. I connect pc diagnostic and delete all error and I started the engine as it nothing had happened. But any way I decide to open engine and look inside of it.