Motor bearings broken !?

Hello people! I bought an audi cabrio 2,3 e last week for the summer 😉 I was a bit more sporty with it yesterday evening… now the following happened… there was suddenly a poltern coming from the front area while driving… sounded like if a exhaust rubber had been torn (audi 80 sickness) it only came when driving and when switching the noise… and if the vehicle with running engine was a bit “uneven”… shortly before I had shuffled with in-between gas. tet… speed high.. clutch off.. and give chain 😉 if you understand what I mean 😉 so I drove to the dealer this morning so that he could look at that… diagnosis —> engine bearings broken !!! is the normal thing that breaks through once “intermediate gas” ? so this jerk was the cause ? are the so sensitive ? or should something else have been the cause ? and must the dealer stick for it or I !? the vehicle ran 124 TKM and had a front damage once 2 years ago but has been repaired in a professional way… keep available for this from AUDI VAG company ! a thank you in advance