Another technical self study programme I've found, in the same series as the Ateca technical guide, 72 pages. This one covers the TDI 2.0 series engine fitted to the Ateca:
https://www.google.co.uk/url?sa=t&rct=j&q=Self+Study+Program+820433The+EA288+Diesel+Engine+FamilyDesign+and+Function&source=web&cd=1&ved=0ahUKEwjH_YHvn7PPAhWBL8AKHZcYAPIQFgggMAA&url=http%3A%2F%2Fpics3.tdiclub.com%2Fdata%2F517%2F820433_EA288.pdf&usg=AFQjCNEf4tgO0cojvuiOSunEiCrBwblCWw&sig2=-w9DRUr1KHWRMZx1-eSO2g
https://www.google.co.uk/url?sa=t&rct=j&q=Self+Study+Program+820433The+EA288+Diesel+Engine+FamilyDesign+and+Function&source=web&cd=1&ved=0ahUKEwjH_YHvn7PPAhWBL8AKHZcYAPIQFgggMAA&url=http%3A%2F%2Fpics3.tdiclub.com%2Fdata%2F517%2F820433_EA288.pdf&usg=AFQjCNEf4tgO0cojvuiOSunEiCrBwblCWw&sig2=-w9DRUr1KHWRMZx1-eSO2g