I have an interview tomorrow but I need help on the major/common faults found on Mercedes Benz actros,pedla,atego trucks and how to detect them.
For example... Overheating can be as a result of radiator coolant needing replacement or the engine valve settings needs to be carried out.
I would appreciate if anyone could help out with this.

Nairalanders don't just view and pass, I've done some research myself but I don't think I have enough to pass a technical interview.
Your help is deeply needed.