I do not know what exactly Spritvinäger is. I searched online but couldn’t get something clear. If it’s vinegar then it’s halal. But if it’s a type of wine then it’s haram, even if it’s a small amount. If it’s not wine but it’s artificial alcohol (like the type found in cologne), then if the entire concentration is is less than 2% it’s halal to consume according to Sayed Sistani.