thanks for your comments,
it makes me belive, that a "spark-maker" guy was there before I was called. Since found inverter bridge, regulators and drivers damaged(steering circuit inside A5). could also see the steer motor cables were stripped to do something.
will go in the direction you recommend and let you know
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.