UK-POLOS.NET - THE VW Polo Forum

Skoda started to manufacturing the EA211 1.0 TSi EVO petrol engine.

The biggest different between this new 1.0 TSi EVO and the original 1.0 TSi, is they replaced the "4mm cast iron sleeve" with a "0.15mm Plasma Coating" inside the cylinder.

At the moment, this 1.0 TSi EVO engine will only be fitted on Skoda vehicles.

But if VW also fit this engine on the Polo, do you think this engine will be reliable?

https://www.skoda-storyboard.com/en/pre ... er-blocks/

That compositional mixture quoted will rival ceramics on the hardness (mohs) scale yet still be tough enough to withstand the rigours of internal combustion and be smoother for lower frictional losses. I've no reason to doubt it's longevity. How much of a difference it makes remains to be seen.

Thinner sleeves and/or coatings have been used in motorbike engines for years, no reason to worry as far as I'm concerned.
It obviously makes re-boring of the cylinders more problematic/impossible, but when was the last time you heard of a car being rebored anyway?

Especially something as pedestrian as a 1.0 TSI engine!

Remember all the 1.2TSI 16V and 1.0TSI engines have all been manufactured by Skoda factories since at least 2014, so the Skoda factor at least is nothing new across the VW Group fleet. Maybe even the same for the earlier 1.2TSI 8V engines, I'm not over the moon about this, just the way VW Group now operate, lots of cheapness same when changing over FM for wipers and Mando for brakes.

Edit:- I was sceptical about VW Group starting to move across to hydraulically "locked" cams on camshafts way back in 2001 - enough to avoid the 1.4FSI engine in favour of the older 1.4 16V - I was wrong, so far I have not read any info on failing camshafts due to cam lobs moving.