Misfire.....

My car had similar issues, was told it could be faulty injectors, but turned out to be the spark plugs. All the best, hope for a good outcome

It was spark plugs with mine at 8,500 miles. now carry spares but can't fit on the road as you need a special tool, I think for cylinder 4.

So it would be Skoda Assist for me.

BTW I was advised to stop driving immediately with the miss fire.

Tony