What’s the fuel like on that T Roc?There is an 2018 1.5 150 Troc in my family which I have driven a few times. I know not a Leon - but same engine.
Generally drove nice - feeling smooth, quiet and nippy.
Did a little hiccup when cold for me when first pulling away - but as I was not familiar with the car/clutch I wasn't too concerned, and the owner used to say it would hiccup/kangaroo when cold sometimes - but I think they have now learnt it's 'quirk' and drive around it - generally not being too gentle when on a cold start.
In my humble - this is due to the tuning and trying to get very quick warm up of the CAT for reduced cold start emissions - and as VW have had their fingers burnt with emissions, and this is how is has been homologated they won't be putting out any meaningful ECU fix.
I would think if kangarooing is an issue which can't be 'driven around' then a remap would help.
Still having crap mpg with mine, I think only solution for me is hoping a remap improves things.
But regarding mine is lumpy in the mornings I notice I’ve had the ECU for DADA, not as bad as it used to be pre update. Definitely not cured though.