From what I can gather, this is a known issue, Skoda manufacturers this family of petrol engines, and they did or a claim has been made that they did discover an error in some tooling on the assembly line, and resolved this. Time line and so possible ranges of engine serial numbers must be known to Skoda and that must have been passed on to all other marques using this family of engines.
Quite a few Skoda Fabia owners have ended up with this
problem, but most of them end up, out of convenience and practicalities being towed to the nearest garage for repair, so VW Group UK just wash their hands of any of this, and this seems too be "it just is not happening" or "it is only acceptable wear and tear" - and that is nonsense!
DVSA need to start trying to find out what is really happening, what their use in society is, and then start getting these clowns like all the VW Group UK importers to start playing the game fairly!!
And there is more, my wife's August 2015 VW Polo 1.2TSI 110PS, deposited the head of one of the four bolts that secure the front carrier assembly (subframe) to the car! These bolts are stretched when tightened, 70Nm then an additional 90 degrees, this car has been owned by my wife from new, no VW dealership or I have ever touched these bolts to cause them to get over torqued, in reality, what has happened, from what I can see is, water has been getting into the area where that bolt head is, and has corroded it to the extent that the bolt has gone from an M12 bolt shank down to roughly a shank that an M8 would have - and so has ended up being overloaded for that size of bolt - and failed due to corrosion - on a car that is only 6.5 year sold and 38K miles - not good! I will be requesting that my local VAG Indie returns all the bolts to me and I will contact VW UK about this, but I don't expect getting any joy from them as my calls/letters will just be going to an outsourced services company who are probably only rewarded by the level of deflection that they give to customers away from VW Group UK, I would like to think that VW does get to hear about this as this could end up like your spraying high pressure petrol, a safety issue.
Edit:- maybe you think that I'm a bit annoyed about this, I am, as are you!! Maybe have a look in the Skoda motoring forum,
www.briskoda.net in the Fabia MK3 section, you will find a thread in there concerning this!
Here it is:-
https://www.briskoda.net/forums/topic/468348-fuel-leak/