I agree with Ray, the exact specification is essential. Similar models with different levels of specification can have very different towing limits and characteristics.
But as an aside, the VW TSI engines are getting some good reviews as tow vehicles - OK they are not diesel, but the Turbo does endow them with quite respectable torque at modest RPM. Certainly better than the non turbo cars we all used to use in the 70's and 80's.
The DSG gearboxes are also getting good reviews when new, but their are some rumors of issues when towing, BUT these are unsubstantiated, and no comparative figures have been given to compare them with manual gear box issues or torque converter autos.
If the Karoq has 150bhp it will probably tow well, but the full specification needs to be checked.