Vibration and pulls slightly right

My diva pulls slightly to the right and has noticeable vibrations in the stand between 1200 – 1700 revolutions. Also not soo bad but not high class worthy… Workshop set the track, was slightly warped. To the vibrations VW says this is standard stand. However, it pulls still slightly to the right, at higher speeds noticeably. But I type on crossbars or something. Can I somehow find out for myself to explain to the workshop what to do? Zottel is unfortunately 5h away Greetings from Ingolstadt!