Good evening I cleaned and stored the winter tyres of the family fleet today. I noticed strange wear marks on the tyres of an Audi A3 (see appendix). The small grooves in the profile blocks have partly completely disappeared, with a few tyres this can be seen more often, with some hardly. The tyres are all of the type Pirelli 210 Snowsport with still about 4mm profile on it. I will not mount the wheels anymore, the tyres have a DOT of 0406, next winter There are definitely four new ones. My question is therefore rather not whether you can still drive with it, but how this comes about or whether this is normal, so that I can avoid this in the future.